Raise exception from button click event : Button Event « Windows Presentation Foundation « VB.Net Tutorial






<Window x:Class="DispatcherUnhandledExceptionSample.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="DispatcherUnhandledException Sample" Height="300" Width="300">
  <StackPanel>
    <Button Name="raiseRecoverableException" Click="raiseRecoverableException_Click">Raise Recoverable Exception</Button>
    <Button Name="raiseUnrecoverableException" Click="raiseUnecoverableException_Click">Raise Unrecoverable Exception</Button>
  </StackPanel>
</Window>

//File:MainWindow.xaml.vb
Imports System
Imports System.Windows

Namespace DispatcherUnhandledExceptionSample
  Public Partial Class MainWindow
    Inherits Window
    Public Sub New()
      InitializeComponent()
    End Sub
    Private Sub raiseRecoverableException_Click(sender As Object, e As RoutedEventArgs)
      Throw New DivideByZeroException("Recoverable Exception")
    End Sub

    Private Sub raiseUnecoverableException_Click(sender As Object, e As RoutedEventArgs)
      Throw New ArgumentNullException("Unrecoverable Exception")
    End Sub
  End Class
End Namespace
WPF Raise Exception From Button Click Event








16.7.Button Event
16.7.1.Button Click event handlerButton Click event handler
16.7.2.Button mouse down eventButton mouse down event
16.7.3.Button mouse down previewButton mouse down preview
16.7.4.Raise exception from button click eventRaise exception from button click event
16.7.5.Button click actionButton click action
16.7.6.Generate Click Events Repeatedly While a Button Is ClickedGenerate Click Events Repeatedly While a Button Is Clicked