Find source element of an element in event handler by casting : Event « Windows Presentation Foundation « VB.Net

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VB.Net » Windows Presentation Foundation » Event 




Find source element of an element in event handler by casting
Find source element of an element in event handler by casting
    


<StackPanel
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="WpfApplication1.RoutedEventSource">
  <StackPanel.Resources>
    <Style TargetType ="{x:Type Button}">
      <Setter Property="Height" Value="30"/>
      <Setter Property="Width" Value="100"/>
      <Setter Property="HorizontalAlignment" Value="Left"/>
    </Style>
  </StackPanel.Resources>
  <Button Click="HandleClick">Button 1</Button>
  <Button Click="HandleClick">Button 2</Button>
  <Button Click="HandleClick">Button 3</Button>    
</StackPanel>

//File:Window.xaml.vb
Imports System.Windows
Imports System.Windows.Controls

Namespace WpfApplication1
  Public Partial Class RoutedEventSource
    Private Sub HandleClick(sender As Object, e As RoutedEventArgs)
      Dim srcButton As Button = TryCast(e.Source, Button)
      srcButton.Width = 200
    End Sub
  End Class
End Namespace

   
    
    
    
  














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