Changing AddTabCommand results in null pointer exception

frankdekker · frankdekker · commit 3a14cc3f3d96 · 2020-12-26T14:31:23.000+01:00
diff --git a/ChromeTabs/ChromeTabControl.cs b/ChromeTabs/ChromeTabControl.cs
@@ -105,7 +105,7 @@ private static void AddTabCommandPropertyChanged(DependencyObject d, DependencyP
             }
             if (e.OldValue != null)
             {
-                ICommand command = (ICommand)e.NewValue;
+                ICommand command = (ICommand)e.OldValue;
                 command.CanExecuteChanged -= ct.Command_CanExecuteChanged;
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -105,7 +105,7 @@ private static void AddTabCommandPropertyChanged(DependencyObject d, DependencyP`
`105`	`105`	`}`
`106`	`106`	`if (e.OldValue != null)`
`107`	`107`	`{`
`108`		`- ICommand command = (ICommand)e.NewValue;`
	`108`	`+ ICommand command = (ICommand)e.OldValue;`
`109`	`109`	`command.CanExecuteChanged -= ct.Command_CanExecuteChanged;`
`110`	`110`	`}`
`111`	`111`	`}`