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lois waisbrooker
lois waisbrooker

Total Post:70

Posted on    November-14-2014 10:42 PM


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I have a user control named Display in MainWindow.xaml. Display user control itself has a custom class Workspace.cs in it like this:

<UserControl x:Class="Program.Main.Controls.Display.Display"






            <workspaces:Workspace x:Name="MyWorkspace" ClipToBounds="True"/>




In my custom class that is Worskspace.cs I'm rising a MouseLeftButtonDown event, I want to execute the ThisCommandCameFromWorkspace method in Display.xaml.cs when rising this event.

What is the best approach to do this? And What is the easiest?


In my Workspace.cs I have

public event Action MyEventHandler;

private void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)


            if (MyEventHandler!= null)



Now I want to capture this in Display user control and execute a method of its code-behind.

Elena Glibart
Elena Glibart

Total Post:42

Posted on    November-15-2014 3:15 AM

I'd suggest not to use Action as event delegate type, but instead use the common type EventHandler. And don't call it MyEventHandler as it is not a handler, but just the event:

public event EventHandler MyEvent;

private void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)


    if (MyEvent != null)


        MyEvent(this, EventArgs.Empty);



Now you would easily attach a handler for the event in the Display's XAML (supported by Intellisense in Visual Studio):

<workspaces:Workspace ... MyEvent="Display_MyEvent"/>

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