Help command : Command « Windows Presentation Foundation « VB.Net

1. VB.Net
2. Windows Presentation Foundation
3. Command

Help command

      

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        x:Class="AboutDialog"
        Title="About WPF Unleashed" SizeToContent="WidthAndHeight"
        Background="OrangeRed">
  <Window.CommandBindings>
    <CommandBinding Command="Help" CanExecute="HelpCanExecute" Executed="HelpExecuted"/>
  </Window.CommandBindings>
  <StackPanel>
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
      <Button MinWidth="75" Margin="10" Command="Help" Content="{Binding RelativeSource={RelativeSource Self}, Path=Command.Text}"/>
      <Button MinWidth="75" Margin="10">OK</Button>
    </StackPanel>
    <StatusBar>asdf</StatusBar>
  </StackPanel>
</Window>

//File:Window.xaml.vb

Imports System.Windows
Imports System.Windows.Input

Public Partial Class AboutDialog
  Inherits Window
  Public Sub New()
    InitializeComponent()
  End Sub

  Private Sub HelpCanExecute(sender As Object, e As CanExecuteRoutedEventArgs)
    e.CanExecute = True
  End Sub

  Private Sub HelpExecuted(sender As Object, e As ExecutedRoutedEventArgs)
    System.Diagnostics.Process.Start("http://www.java2s.com")
  End Sub
End Class

   
    
    
    
    
    
  

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