#501 – Sharing an Event Handler Across Multiple Controls, Method II

If you want to use an event handler to handle an event originating from several controls, you can specify the handler for each control and then use the RoutedEventArgs.Source property to determine the control that originated the event.

You can also just specify a handler for the Button.Click event on the parent panel that holds all of the buttons.  It will handle all Click events that originate lower down in the visual tree.

    <StackPanel ButtonBase.Click="Button_Click">
        <Button Content="Keaton" HorizontalAlignment="Center" Padding="10,5" Margin="5"/>
        <Button Content="Chaplin" HorizontalAlignment="Center" Padding="10,5" Margin="5"/>
        <Button Content="Arbuckle" HorizontalAlignment="Center" Padding="10,5" Margin="5"/>
    </StackPanel>

The event handler is the same as before–you can check the RoutedEventArgs.Source property to determine the Button that originated the event.

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            // Get at originator of event using RoutedEventArgs.Source property

            Button b = e.Source as Button;
            MessageBox.Show(string.Format("You clicked on {0} button", b.Content));
        }

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #501 – Sharing an Event Handler Across Multiple Controls, Method II

  1. Pingback: Dew Drop – February 24, 2012 (#1,272) | Alvin Ashcraft's Morning Dew

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: