Update ExceptionHandlingSecondaryUIThread to shutdown Dispatcher (mic…

…rosoft#59)

* Update ExceptionHandlingSecondaryUIThread to shutdown Dispatcher when Window is closed

* SecondaryUIThreadWindow.cs formatting: Tabs to Spaces

* Add root `.editorconfig` with settings for C# files

* Remove default header of .editor config file

.editorconfig

@@ -0,0 +1,7 @@
+# top-most EditorConfig file
+root = true
+
+[*.cs]
+end_of_line = crlf
+indent_style = space
+indent_size = 4

Application Management/ExceptionHandlingSecondaryUIThread/SecondaryUIThreadWindow.cs

@@ -25,7 +25,7 @@ private void raiseExceptionOnSecondaryUIThreadButton_Click(object sender, Routed
             throw new Exception(msg);
         }
 
-        private void SecondaryUiThreadWindow_Closed(object sender, EventArgs e)
+        private void SecondaryUIThreadWindow_OnClosed(object sender, EventArgs e)
         {
             // End this thread of execution
             Dispatcher.InvokeShutdown();

Application Management/ExceptionHandlingSecondaryUIThread/SecondaryUIThreadWindow.xaml

@@ -5,7 +5,8 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:ExceptionHandlingSecondaryUIThread"
         mc:Ignorable="d"
-        Title="SecondaryUIThreadWindow" Height="300" Width="300">
+        Title="SecondaryUIThreadWindow" Height="300" Width="300"
+        Closed="SecondaryUIThreadWindow_OnClosed">
     <Grid>
         <Button Click="raiseExceptionOnSecondaryUIThreadButton_Click">Raise an Exception on the Secondary UI Thread</Button>
     </Grid>