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83.6c0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252C496 113.3 383.5 8 244.8 8M97.2 352.9c-1.3 1-1 3.3.7 5.2c1.6 1.6 3.9 2.3 5.2 1c1.3-1 1-3.3-.7-5.2c-1.6-1.6-3.9-2.3-5.2-1m-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9c1.6 1 3.6.7 4.3-.7c.7-1.3-.3-2.9-2.3-3.9c-2-.6-3.6-.3-4.3.7m32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2c2.3 2.3 5.2 2.6 6.5 1c1.3-1.3.7-4.3-1.3-6.2c-2.2-2.3-5.2-2.6-6.5-1m-11.4-14.7c-1.6 1-1.6 3.6 0 5.9s4.3 3.3 5.6 2.3c1.6-1.3 1.6-3.9 0-6.2c-1.4-2.3-4-3.3-5.6-2\"\u002F>",{"left":4,"top":4,"width":24,"height":16,"rotate":4,"vFlip":6,"hFlip":6,"body":25},448,"\u003Cpath fill=\"currentColor\" d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3M135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5c0 21.3-17.2 38.5-38.5 38.5m282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7c-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5c67.2 0 79.7 44.3 79.7 101.9z\"\u002F>",{"left":4,"top":4,"width":27,"height":16,"rotate":4,"vFlip":6,"hFlip":6,"body":28},384,"\u003Cpath fill=\"currentColor\" d=\"M290.7 311L95 269.7L86.8 309l195.7 41zm51-87L188.2 95.7l-25.5 30.8l153.5 128.3zm-31.2 39.7L129.2 179l-16.7 36.5L293.7 300zM262 32l-32 24l119.3 160.3l32-24zm20.5 328h-200v39.7h200zm39.7 80H42.7V320h-40v160h359.5V320h-40z\"\u002F>",{"left":4,"top":4,"width":5,"height":5,"rotate":4,"vFlip":6,"hFlip":6,"body":30},"\u003Cpath fill=\"currentColor\" d=\"M5.202 2.857C7.954 4.922 10.913 9.11 12 11.358c1.087-2.247 4.046-6.436 6.798-8.501C20.783 1.366 24 .213 24 3.883c0 .732-.42 6.156-.667 7.037c-.856 3.061-3.978 3.842-6.755 3.37c4.854.826 6.089 3.562 3.422 6.299c-5.065 5.196-7.28-1.304-7.847-2.97c-.104-.305-.152-.448-.153-.327c0-.121-.05.022-.153.327c-.568 1.666-2.782 8.166-7.847 2.97c-2.667-2.737-1.432-5.473 3.422-6.3c-2.777.473-5.899-.308-6.755-3.369C.42 10.04 0 4.615 0 3.883c0-3.67 3.217-2.517 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48-48V112c0-26.51-21.49-48-48-48m0 48v40.805c-22.422 18.259-58.168 46.651-134.587 106.49c-16.841 13.247-50.201 45.072-73.413 44.701c-23.208.375-56.579-31.459-73.413-44.701C106.18 199.465 70.425 171.067 48 152.805V112zM48 400V214.398c22.914 18.251 55.409 43.862 104.938 82.646c21.857 17.205 60.134 55.186 103.062 54.955c42.717.231 80.509-37.199 103.053-54.947c49.528-38.783 82.032-64.401 104.947-82.653V400z\"\u002F>",{"left":4,"top":4,"width":24,"height":16,"rotate":4,"vFlip":6,"hFlip":6,"body":36},"\u003Cpath fill=\"currentColor\" d=\"M128.081 415.959c0 35.369-28.672 64.041-64.041 64.041S0 451.328 0 415.959s28.672-64.041 64.041-64.041s64.04 28.673 64.04 64.041m175.66 47.25c-8.354-154.6-132.185-278.587-286.95-286.95C7.656 175.765 0 183.105 0 192.253v48.069c0 8.415 6.49 15.472 14.887 16.018c111.832 7.284 201.473 96.702 208.772 208.772c.547 8.397 7.604 14.887 16.018 14.887h48.069c9.149.001 16.489-7.655 15.995-16.79m144.249.288C439.596 229.677 251.465 40.445 16.503 32.01C7.473 31.686 0 38.981 0 48.016v48.068c0 8.625 6.835 15.645 15.453 15.999c191.179 7.839 344.627 161.316 352.465 352.465c.353 8.618 7.373 15.453 15.999 15.453h48.068c9.034-.001 16.329-7.474 16.005-16.504\"\u002F>",{"id":38,"title":39,"author":40,"body":41,"comments":196,"date":251,"dateModified":252,"description":253,"extension":254,"headings":255,"heroImage":256,"meta":257,"path":59,"permalink":59,"published":258,"stem":259,"tags":260,"timeToRead":270},"posts\u002Fposts\u002F2014\u002Fmodel-view-viewmodel-mvvm-part2-idisposable\u002Findex.md","Model-View-ViewModel (MVVM) - Part 2 - IDisposable","Muhammad Rehan Saeed",{"type":42,"value":43,"toc":193},"minimark",[44,73,85,106,131,134,141,144,174,177,180,183,186,189],[45,46,47,55,61,67],"ol",{},[48,49,50],"li",{},[51,52,54],"a",{"href":53},"\u002Fmodel-view-viewmodel-mvvm-part1-overview\u002F","Model-View-ViewModel (MVVM) - Overview",[48,56,57],{},[51,58,60],{"href":59},"\u002Fmodel-view-viewmodel-mvvm-part2-idisposable\u002F","Model-View-ViewModel (MVVM) - IDisposable",[48,62,63],{},[51,64,66],{"href":65},"\u002Fmodel-view-viewmodel-mvvm-part3-inotifypropertychanged\u002F","Model-View-ViewModel (MVVM) - INotifyPropertyChanged",[48,68,69],{},[51,70,72],{"href":71},"\u002Fmodel-view-viewmodel-mvvm-part4-inotifydataerrorinfo\u002F","Model-View-ViewModel (MVVM) - INotifyDataErrorInfo",[74,75,76,77,81,82,84],"p",{},"View models these days interact with all kinds of precious resources like Compasses and the GPS. Implementing ",[78,79,80],"code",{},"IDisposable"," is an important pattern you can follow to dispose of these resources cleanly. Freeing them up to be used elsewhere and saving the users battery (Particularly important on mobile devices). Using the ",[78,83,80],{}," interface in the Model-View-ViewModel (MVVM) pattern is a wise decision.",[74,86,87,88,90,91,95,96,105],{},"Implementing ",[78,89,80],{}," ",[92,93,94],"strong",{},"correctly"," is ridiculously hard. If you don't know how hard it really is, I recommend reading the top comment on ",[51,97,104],{"href":98,"rel":99,"target":103},"http:\u002F\u002Fstackoverflow.com\u002Fquestions\u002F538060\u002Fproper-use-of-the-idisposable-interface",[100,101,102],"nofollow","noopener","noreferrer","_blank","this"," Stack Overflow article.",[74,107,87,108,112,113,118,119,124,125,130],{},[51,109,80],{"href":110,"rel":111,"target":103},"http:\u002F\u002Fmsdn.microsoft.com\u002Fen-GB\u002Flibrary\u002Fsystem.idisposable.aspx",[100,101,102]," is one of the rare times in C# where a developer has to use ",[51,114,117],{"href":115,"rel":116,"target":103},"http:\u002F\u002Fmsdn.microsoft.com\u002Fen-us\u002Flibrary\u002F66x5fx1b.aspx",[100,101,102],"C# Destructors"," and also one of the few times when we have to tickle the garbage collector to stop it from trying to release the unmanaged resources twice by calling ",[51,120,123],{"href":121,"rel":122,"target":103},"http:\u002F\u002Fmsdn.microsoft.com\u002Fen-us\u002Flibrary\u002Fsystem.gc.suppressfinalize%28v=vs.110%29.aspx",[100,101,102],"SuppressFinalize"," on ",[51,126,129],{"href":127,"rel":128,"target":103},"http:\u002F\u002Fmsdn.microsoft.com\u002Fen-us\u002Flibrary\u002Fsystem.gc%28v=vs.110%29.aspx",[100,101,102],"GC",".",[74,132,133],{},"Having to write this code repeatedly is difficult and error prone, so how about a base class?",[135,136],"pre",{"className":137,"language":138,"meta":139,"style":139,"html":140},"language-cs shiki shiki-themes light-plus monokai","cs","","\u003Cspan class=\"line\">\u003Cspan class=\"s4J9F\">namespace\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> Framework\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">ComponentModel\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">{\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">    using\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> System\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">    using\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> System\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Reactive\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">    using\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> System\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Reactive\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Linq\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">    using\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> System\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Reactive\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Subjects\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">    \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">    \u002F\u002F\u002F Base class for members implementing \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"IDisposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">    \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    public\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> abstract\u003C\u002Fspan>\u003Cspan class=\"s4J9F\"> class\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> Disposable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> : \u003C\u002Fspan>\u003Cspan class=\"sw29p\">IDisposable\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        private\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> bool\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> isDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        private\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> Subject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"><\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Unit\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">> \u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Finalizes an instance of the \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"Disposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> class. Releases unmanaged\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F resources and performs other cleanup operations before the \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"Disposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F is reclaimed by garbage collection. Will run only if the\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Dispose method does not get called.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        ~\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Disposable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">() \u003C\u002Fspan>\u003Cspan class=\"snCLD\">=>\u003C\u002Fspan>\u003Cspan class=\"sK46n\"> this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sMc8R\">false\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Gets the when errors changed observable event. Occurs when the validation errors have changed for a property or for the entire object.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">value\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F The when errors changed observable event.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">value\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        public\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> IObservable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"><\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Unit\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">> \u003C\u002Fspan>\u003Cspan class=\"sFrd5\">WhenDisposed\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s4J9F\">            get\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">IsDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                    return\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> Observable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Return\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">Unit\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">Default\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                else\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                    if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> ==\u003C\u002Fspan>\u003Cspan class=\"sMc8R\"> null\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                    {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                        this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> new\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> Subject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"><\u003C\u002Fspan>\u003Cspan class=\"sw29p\">Unit\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">>();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                    }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                    return\u003C\u002Fspan>\u003Cspan class=\"sK46n\"> this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">AsObservable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Gets a value indicating whether this \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"Disposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> is disposed.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">value\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">true\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> if disposed; otherwise, \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">false\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">.\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">value\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        public\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> bool\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> IsDisposed\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =>\u003C\u002Fspan>\u003Cspan class=\"sK46n\"> this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">isDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        public\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">            \u002F\u002F Dispose all managed and unmanaged resources.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">            this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sMc8R\">true\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">            \u002F\u002F Take this object off the finalization queue and prevent finalization code for this\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">            \u002F\u002F object from executing a second time.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sFrd5\">            GC\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">SuppressFinalize\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Disposes the managed resources implementing \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"IDisposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        protected\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> virtual\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> DisposeManaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Disposes the unmanaged resources implementing \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"IDisposable\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        protected\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> virtual\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> DisposeUnmanaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Throws a \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">see\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> cref\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"ObjectDisposedException\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">\u002F>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> if this instance is disposed.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        protected\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> ThrowIfDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">            if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">isDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                throw\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> new\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> ObjectDisposedException\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">GetType\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">().\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">Name\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F Releases unmanaged and - optionally - managed resources.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">summary\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">param\u003C\u002Fspan>\u003Cspan class=\"snDo4\"> name\u003C\u002Fspan>\u003Cspan class=\"s1q82\">=\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"disposing\"\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">true\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> to release both managed and unmanaged resources;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F\u002F \u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\">false\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">c\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\u003C\u002Fspan>\u003Cspan class=\"s1q82\"> to release only unmanaged resources, called from the finalizer only.\u003C\u002Fspan>\u003Cspan class=\"sOBmp\"><\u002F\u003C\u002Fspan>\u003Cspan class=\"sjbfc\">param\u003C\u002Fspan>\u003Cspan class=\"sOBmp\">>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">        private\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sJvqV\">bool\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> disposing\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">            \u002F\u002F Check to see if Dispose has already been called.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">            if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"snCLD\">!\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">isDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">                \u002F\u002F If disposing managed and unmanaged resources.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">disposing\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                    this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">DisposeManaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">DisposeUnmanaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">isDisposed\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =\u003C\u002Fspan>\u003Cspan class=\"sMc8R\"> true\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"smL5M\">                if\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> (\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> !=\u003C\u002Fspan>\u003Cspan class=\"sMc8R\"> null\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">)\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">                    \u002F\u002F Raise the WhenDisposed event.\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                    this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">OnNext\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">Unit\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">Default\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                    this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">OnCompleted\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">                    this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">whenDisposedSubject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">                }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">            }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">        }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">}\n\u003C\u002Fspan>\u003C\u002Fspan>",[74,142,143],{},"There are several interesting facets to this implementation.",[45,145,146,149,160,167],{},[48,147,148],{},"There is a difference between disposing of managed and unmanaged resources in the disposable pattern. To facilitate this, there are two separate protected methods which can be overridden in a derived class to dispose of each of them.",[48,150,151,152,155,156,159],{},"The disposable pattern requires you to throw an ",[78,153,154],{},"ObjectDisposedException"," when you try to access a property or method after the object has been disposed. To achieve this, there is a ",[78,157,158],{},"ThrowIfDisposed"," helper method which can be added to the top of each property or method.",[48,161,162,163,166],{},"There is an ",[78,164,165],{},"IsDisposed"," property which can be useful if we don't know if the object is disposed or not.",[48,168,169,170,173],{},"Finally, there is a Reactive Extensions (Rx) observable ",[78,171,172],{},"WhenDisposed"," property. This allows us to register for the dispose event.",[74,175,176],{},"Here is an example of how the base class is used to dispose of both a managed and unmanaged (COM object) resources.",[135,178],{"className":137,"language":138,"meta":139,"style":139,"html":179},"\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">public\u003C\u002Fspan>\u003Cspan class=\"s4J9F\"> class\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> DisposableExample\u003C\u002Fspan>\u003Cspan class=\"sjLUg\"> : \u003C\u002Fspan>\u003Cspan class=\"sw29p\">Disposable\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">{\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    private\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> ManagedResource\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> managedResource\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    private\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> UnmanagedResource\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> unmanagedResource\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    public\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> Foo\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">        this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">ThrowIfDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"s1q82\">        \u002F\u002F Do Stuff\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    protected\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> override\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> DisposeManaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">() \u003C\u002Fspan>\u003Cspan class=\"snCLD\">=>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">        this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">managedResource\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan>\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sJvqV\">    protected\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> override\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> void\u003C\u002Fspan>\u003Cspan class=\"sWm5y\"> DisposeUnmanaged\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">()\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    {\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sFrd5\">        Marshal\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">ReleaseComObject\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sK46n\">this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">unmanagedResource\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sK46n\">        this\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">unmanagedResource\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =\u003C\u002Fspan>\u003Cspan class=\"sMc8R\"> null\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">;\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">    }\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sjLUg\">}\n\u003C\u002Fspan>\u003C\u002Fspan>",[74,181,182],{},"An example of how to dispose of an instance of the above object.",[135,184],{"className":137,"language":138,"meta":139,"style":139,"html":185},"\u003Cspan class=\"line\">\u003Cspan class=\"sw29p\">DisposableExample\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> disposable\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =\u003C\u002Fspan>\u003Cspan class=\"sJvqV\"> new\u003C\u002Fspan>\u003Cspan class=\"sw29p\"> DisposableExample\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sFrd5\">disposable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">WhenDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Subscribe\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">x\u003C\u002Fspan>\u003Cspan class=\"snCLD\"> =>\u003C\u002Fspan>\u003Cspan class=\"sFrd5\"> Console\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">WriteLine\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"swiDo\">\"Disposed Event Fired\"\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">));\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sFrd5\">disposable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">Dispose\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">();\n\u003C\u002Fspan>\u003C\u002Fspan>\u003Cspan class=\"line\">\u003Cspan class=\"sFrd5\">Console\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sWm5y\">WriteLine\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">(\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">disposable\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">.\u003C\u002Fspan>\u003Cspan class=\"sFrd5\">IsDisposed\u003C\u002Fspan>\u003Cspan class=\"sjLUg\">);\n\u003C\u002Fspan>\u003C\u002Fspan>",[74,187,188],{},"As you can see, it looks a whole lot simpler and has some pretty cool helper functions and features. No more need to remember how to implement this complicated pattern.",[190,191,192],"style",{},"html pre.shiki code .s4J9F, html code.shiki .s4J9F{--shiki-default:#0000FF;--shiki-default-font-style:inherit;--shiki-dark:#66D9EF;--shiki-dark-font-style:italic}html pre.shiki code .sw29p, html code.shiki .sw29p{--shiki-default:#267F99;--shiki-default-text-decoration:inherit;--shiki-dark:#A6E22E;--shiki-dark-text-decoration:underline}html pre.shiki code .sjLUg, html code.shiki .sjLUg{--shiki-default:#000000;--shiki-dark:#F8F8F2}html pre.shiki code .smL5M, html code.shiki .smL5M{--shiki-default:#AF00DB;--shiki-dark:#F92672}html pre.shiki code .s1q82, html code.shiki .s1q82{--shiki-default:#008000;--shiki-dark:#88846F}html pre.shiki code .sOBmp, html code.shiki .sOBmp{--shiki-default:#800000;--shiki-dark:#88846F}html pre.shiki code .sjbfc, html code.shiki .sjbfc{--shiki-default:#800000;--shiki-dark:#F92672}html pre.shiki code .snDo4, html code.shiki .snDo4{--shiki-default:#E50000;--shiki-dark:#A6E22E}html pre.shiki code .swiDo, html code.shiki .swiDo{--shiki-default:#A31515;--shiki-dark:#E6DB74}html pre.shiki code .sJvqV, html code.shiki .sJvqV{--shiki-default:#0000FF;--shiki-dark:#F92672}html pre.shiki code .sFrd5, html code.shiki .sFrd5{--shiki-default:#001080;--shiki-dark:#F8F8F2}html pre.shiki code .sWm5y, html code.shiki .sWm5y{--shiki-default:#795E26;--shiki-dark:#A6E22E}html pre.shiki code .snCLD, html code.shiki .snCLD{--shiki-default:#000000;--shiki-dark:#F92672}html pre.shiki code .sK46n, html code.shiki .sK46n{--shiki-default:#0000FF;--shiki-dark:#FD971F}html pre.shiki code .sMc8R, html code.shiki .sMc8R{--shiki-default:#0000FF;--shiki-dark:#AE81FF}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":139,"searchDepth":194,"depth":194,"links":195},2,[],{"issue":197,"comments":201},{"number":198,"title":199,"html_url":200},91,"[Comment] Model-View-ViewModel (MVVM) - Part 2 - IDisposable","https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91",[202,214,222,230,243],{"id":203,"html_url":204,"body_html":205,"created_at":206,"updated_at":206,"author_association":207,"user":208,"reactions":212},627264069,"https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91#issuecomment-627264069","\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F8a07049df41b8a3839a3f4342f09ea8e6e7fa0065667687f04beca2d088a1dca\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f32623266393030653361633066353535316462646537323864336262343935343f733d393626643d6d6d26723d67\">\u003Cimg alt=\"Muhammad Rehan Saeed\" height=\"40\" width=\"40\" src=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F8a07049df41b8a3839a3f4342f09ea8e6e7fa0065667687f04beca2d088a1dca\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f32623266393030653361633066353535316462646537323864336262343935343f733d393626643d6d6d26723d67\" \u002F>\u003C\u002Fa> \u003Cstrong>Muhammad Rehan Saeed\u003C\u002Fstrong> commented on \u003Cstrong>2014-09-10 08:43:45\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>I had a very interesting conversation with 'holymoo' on Reddit that I thought I'd post here.\u003C\u002Fp>\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fgithub.com\u002FHolyMoo\">@HolyMoo\u003C\u002Fa>\u003Cbr \u002F>\nSo, the value with implementing this \u003Ccode>IDisposable\u003C\u002Fcode> base class is to more effectively manage memory when it comes to working with hardware components like the gps and the compass. Now I completely agree that these object need to be disposed of when their usefulness ends.\u003Cbr \u002F>\nI think a base class like this adds a lot of overhead for doing an operation that can be accomplished by simply using a using statement or calling dispose.\u003Cbr \u002F>\nMaybe another way to phrase this would be, when is there a situation where you would want the viewmodel to implement \u003Ccode>IDisposible\u003C\u002Fcode>?\u003C\u002Fp>\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fgithub.com\u002FRehanSaeed\">@RehanSaeed\u003C\u002Fa>\u003Cbr \u002F>\nSometimes, you want disposables to exist for the lifetime of the view model. Not just things like GPS and compass but event subscriptions which should be disposed unless you like memory leaks and other things which are more likely to popup if you use WPF with COM components for example.\u003Cbr \u002F>\nStarting with a disposable base class and building on top of that gives this ability if its needed. Its totally optional to dispose something or not. As for performance, it has almost zero impact. Adding an extra class in the inheritance hierarchy and doing a few boolean checks has a negligible performance impact.\u003Cbr \u002F>\nI have thought if its worth it in some of my simpler WinRT projects as you have. If you don't need it, its pretty simple to remove or you can ignore it.\u003C\u002Fp>\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fgithub.com\u002FHolyMoo\">@HolyMoo\u003C\u002Fa>\u003Cbr \u002F>\nI can see that. I typically try to avoid writing classes which inherit from \u003Ccode>IDisposable\u003C\u002Fcode> for the sake of trying to architect things in such a way to keep using statements as small as possible.\u003C\u002Fp>\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fgithub.com\u002FRehanSaeed\">@RehanSaeed\u003C\u002Fa>\u003Cbr \u002F>\nCorrect. But even Microsoft does it. They implement \u003Ccode>IDisposable\u003C\u002Fcode> and then tell you not to use it. \u003Ccode>HttpClient\u003C\u002Fcode> is a good example.\u003C\u002Fp>","2020-05-12T10:45:36Z","OWNER",{"login":209,"avatar_url":210,"html_url":211},"RehanSaeed","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F2270364?v=4","https:\u002F\u002Fgithub.com\u002FRehanSaeed",{"url":213,"total_count":4,"+1":4,"-1":4,"laugh":4,"hooray":4,"confused":4,"heart":4,"rocket":4,"eyes":4},"https:\u002F\u002Fapi.github.com\u002Frepos\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002Fcomments\u002F627264069\u002Freactions",{"id":215,"html_url":216,"body_html":217,"created_at":218,"updated_at":218,"author_association":207,"user":219,"reactions":220},627264115,"https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91#issuecomment-627264115","\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F20f1d139fa596eead0b63650b7132cb189209b34e366183b880ac14806c93879\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f38626334626363386333383264323966353563393365643763333534636536653f733d393626643d6d6d26723d67\">\u003Cimg alt=\"Thomas\" height=\"40\" width=\"40\" src=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F20f1d139fa596eead0b63650b7132cb189209b34e366183b880ac14806c93879\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f38626334626363386333383264323966353563393365643763333534636536653f733d393626643d6d6d26723d67\" \u002F>\u003C\u002Fa> \u003Cstrong>Thomas\u003C\u002Fstrong> commented on \u003Cstrong>2017-01-11 16:43:03\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>Where are you getting the Unit ans Observable types?\u003C\u002Fp>","2020-05-12T10:45:43Z",{"login":209,"avatar_url":210,"html_url":211},{"url":221,"total_count":4,"+1":4,"-1":4,"laugh":4,"hooray":4,"confused":4,"heart":4,"rocket":4,"eyes":4},"https:\u002F\u002Fapi.github.com\u002Frepos\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002Fcomments\u002F627264115\u002Freactions",{"id":223,"html_url":224,"body_html":225,"created_at":226,"updated_at":226,"author_association":207,"user":227,"reactions":228},627264160,"https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91#issuecomment-627264160","\n\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F8a07049df41b8a3839a3f4342f09ea8e6e7fa0065667687f04beca2d088a1dca\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f32623266393030653361633066353535316462646537323864336262343935343f733d393626643d6d6d26723d67\">\u003Cimg alt=\"Muhammad Rehan Saeed\" height=\"40\" width=\"40\" src=\"https:\u002F\u002Fcamo.githubusercontent.com\u002F8a07049df41b8a3839a3f4342f09ea8e6e7fa0065667687f04beca2d088a1dca\u002F68747470733a2f2f7777772e67726176617461722e636f6d2f6176617461722f32623266393030653361633066353535316462646537323864336262343935343f733d393626643d6d6d26723d67\" \u002F>\u003C\u002Fa> \u003Cstrong>\u003Ca rel=\"nofollow noopener noreferrer\" target=\"_blank\" href=\"https:\u002F\u002Frehansaeed.com\u002F\">Muhammad Rehan Saeed\u003C\u002Fa>\u003C\u002Fstrong> commented on \u003Cstrong>2017-01-12 10:49:14\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cblockquote>\n\u003Cp>Where are you getting the Unit ans Observable types?\u003C\u002Fp>\n\u003C\u002Fblockquote>\n\u003Cp>From the Reactive Extensions NuGet packages.\u003C\u002Fp>","2020-05-12T10:45:50Z",{"login":209,"avatar_url":210,"html_url":211},{"url":229,"total_count":4,"+1":4,"-1":4,"laugh":4,"hooray":4,"confused":4,"heart":4,"rocket":4,"eyes":4},"https:\u002F\u002Fapi.github.com\u002Frepos\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002Fcomments\u002F627264160\u002Freactions",{"id":231,"html_url":232,"body_html":233,"created_at":234,"updated_at":235,"author_association":236,"user":237,"reactions":241},1309456815,"https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91#issuecomment-1309456815","\u003Cp>I found your article quite helpful. However I'm considering what will happen if Dispose is called concurrently. Maybe a guard with Interlocked.Exchange is needed to address such cases. Something like:\u003C\u002Fp>\n\u003Cdiv>\u003Cpre>\u003Cspan>int\u003C\u002Fspan> \u003Cspan>_IsDisposed\u003C\u002Fspan>\u003Cspan>;\u003C\u002Fspan>\n\u003Cspan>public\u003C\u002Fspan> \u003Cspan>bool\u003C\u002Fspan> \u003Cspan>IsDisposed\u003C\u002Fspan> \u003Cspan>=>\u003C\u002Fspan> _IsDisposed \u003Cspan>!=\u003C\u002Fspan> \u003Cspan>0\u003C\u002Fspan>\u003Cspan>;\u003C\u002Fspan>\n\u003Cspan>private\u003C\u002Fspan> \u003Cspan>void\u003C\u002Fspan> \u003Cspan>Dispose\u003C\u002Fspan>\u003Cspan>(\u003C\u002Fspan>\u003Cspan>bool\u003C\u002Fspan> \u003Cspan>disposing\u003C\u002Fspan>\u003Cspan>)\u003C\u002Fspan>\n\u003Cspan>{\u003C\u002Fspan>\n    \u003Cspan>bool\u003C\u002Fspan> \u003Cspan>alreadyDisposed\u003C\u002Fspan> \u003Cspan>=\u003C\u002Fspan> \u003Cspan>Interlocked\u003C\u002Fspan>\u003Cspan>.\u003C\u002Fspan>\u003Cspan>Exchange\u003C\u002Fspan>\u003Cspan>(\u003C\u002Fspan>\u003Cspan>ref\u003C\u002Fspan> \u003Cspan>_IsDisposed\u003C\u002Fspan>\u003Cspan>,\u003C\u002Fspan> \u003Cspan>1\u003C\u002Fspan>\u003Cspan>)\u003C\u002Fspan> \u003Cspan>!=\u003C\u002Fspan> \u003Cspan>0\u003C\u002Fspan>\u003Cspan>;\u003C\u002Fspan>\n    \u003Cspan>if\u003C\u002Fspan> \u003Cspan>(\u003C\u002Fspan>\u003Cspan>!\u003C\u002Fspan>\u003Cspan>alreadyDisposed\u003C\u002Fspan>\u003Cspan>)\u003C\u002Fspan>\n    \u003Cspan>{\u003C\u002Fspan>\n        \u003Cspan>..\u003C\u002Fspan>\u003Cspan>.\u003C\u002Fspan>\u003C\u002Fpre>\u003C\u002Fdiv>\n\u003Cp>Please let me know your opinion on that matter?\u003C\u002Fp>","2022-11-09T22:18:46Z","2022-11-10T09:11:02Z","NONE",{"login":238,"avatar_url":239,"html_url":240},"tchoha","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F90052922?v=4","https:\u002F\u002Fgithub.com\u002Ftchoha",{"url":242,"total_count":4,"+1":4,"-1":4,"laugh":4,"hooray":4,"confused":4,"heart":4,"rocket":4,"eyes":4},"https:\u002F\u002Fapi.github.com\u002Frepos\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002Fcomments\u002F1309456815\u002Freactions",{"id":244,"html_url":245,"body_html":246,"created_at":247,"updated_at":247,"author_association":207,"user":248,"reactions":249},1309984995,"https:\u002F\u002Fgithub.com\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002F91#issuecomment-1309984995","\u003Cp>\u003Ca target=\"_blank\" rel=\"nofollow noopener noreferrer\" href=\"https:\u002F\u002Fgithub.com\u002Ftchoha\">@tchoha\u003C\u002Fa> Yes, you have the correct answer if you need to add thread safety for some reason. More info below:\u003C\u002Fp>\n\u003Cp>\u003Ca rel=\"nofollow noopener noreferrer\" target=\"_blank\" href=\"https:\u002F\u002Fstackoverflow.com\u002Fquestions\u002F8927878\u002Fwhat-is-the-correct-way-of-adding-thread-safety-to-an-idisposable-object\">https:\u002F\u002Fstackoverflow.com\u002Fquestions\u002F8927878\u002Fwhat-is-the-correct-way-of-adding-thread-safety-to-an-idisposable-object\u003C\u002Fa>\u003C\u002Fp>","2022-11-10T09:13:02Z",{"login":209,"avatar_url":210,"html_url":211},{"url":250,"total_count":4,"+1":4,"-1":4,"laugh":4,"hooray":4,"confused":4,"heart":4,"rocket":4,"eyes":4},"https:\u002F\u002Fapi.github.com\u002Frepos\u002FRehanSaeed\u002Frehansaeed.github.io\u002Fissues\u002Fcomments\u002F1309984995\u002Freactions","2014-06-13T00:00:00+00:00",null,"Implementing IDisposable correctly is ridiculously hard. A Disposable base class can make it easier. Using IDisposable in Model-View-ViewModel (MVVM) really helps.","md",[],"\u002Fimages\u002Fhero\u002FMVVM-1366x768.png",{},true,"posts\u002F2014\u002Fmodel-view-viewmodel-mvvm-part2-idisposable\u002Findex",[261,262,263,264,265,80,266,267,268,269],".NET","Base Class Library","BCL","C#","Design Patterns","Model-View-ViewModel (MVVM)","MVVM","Reactive Extensions","Rx",4,[272,277,281,286,290,293,296,300,304,308,311,315,320,323,326,330,334,336,337,340,344,347,350,355,360,364,367,370,373,378,383,386,391,395,399,403,406,410,414,418,422,426,430,434,437,441,445,449,453,456,460,464,467,470,474,478,483,487,491,495,499,503,507,510,513,516,520,524,527,531,534,537,540,543,547,551,554,557,561,565,568,571,574,578,582,586,590,593,596,601,604,607,611,614,618,622,625,629,632,635,639,643,647],{"title":273,"permalink":274,"heroImage":275,"timeToRead":276},"Just Start - The First Blog Post","\u002Fjust-start-the-first-blog-post\u002F","\u002Fimages\u002Fhero\u002FJust-Start-1366x768.png",1,{"title":278,"permalink":279,"heroImage":280,"timeToRead":194},"ConfigureAwait in Task Parallel Library (TPL)","\u002Fconfigureawait-task-parallel-library\u002F","\u002Fimages\u002Fhero\u002FMicrosoft-.NET-1366x768.png",{"title":282,"permalink":283,"heroImage":284,"timeToRead":285},"Stop The Brace Wars, Use StyleCop","\u002Fstop-brace-wars-use-stylecop\u002F","\u002Fimages\u002Fhero\u002FStyleCop-1366x768.png",3,{"title":287,"permalink":288,"heroImage":289,"timeToRead":270},"Reactive Extensions (Rx) - Part 1 - Replacing C# Events","\u002Freactive-extensions-part1-replacing-events\u002F","\u002Fimages\u002Fhero\u002FReactive-Extensions-1366x768.png",{"title":291,"permalink":292,"heroImage":289,"timeToRead":285},"Reactive Extensions (Rx) - Part 2 - Wrapping C# 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