fixed NRE in XamlOutlineContentHost.TreeViewMouseDoubleClick (see forum/20507)

siegfriedpammer · siegfriedpammer · commit 81f43dc9e80b · 2014-03-28T17:57:56.000+01:00
diff --git a/src/AddIns/BackendBindings/XamlBinding/XamlBinding/XamlOutlineContentHost.xaml.cs b/src/AddIns/BackendBindings/XamlBinding/XamlBinding/XamlOutlineContentHost.xaml.cs
@@ -118,6 +118,7 @@ XamlOutlineNode BuildNode(AXmlElement item)
 		void TreeViewMouseDoubleClick(object sender, MouseButtonEventArgs e)
 		{
 			XamlOutlineNode node = treeView.SelectedItem as XamlOutlineNode;
+			if (node == null) return;
 			editor.Select(node.Marker.Offset, node.EndMarker.Offset - node.Marker.Offset);
 		}
 		

Original file line number	Diff line number	Diff line change
`@@ -118,6 +118,7 @@ XamlOutlineNode BuildNode(AXmlElement item)`
`118`	`118`	`void TreeViewMouseDoubleClick(object sender, MouseButtonEventArgs e)`
`119`	`119`	`{`
`120`	`120`	`XamlOutlineNode node = treeView.SelectedItem as XamlOutlineNode;`
	`121`	`+ if (node == null) return;`
`121`	`122`	`editor.Select(node.Marker.Offset, node.EndMarker.Offset - node.Marker.Offset);`
`122`	`123`	`}`
`123`	`124`