Binding command to ApplicationCommands.Redo : ApplicationCommands « Windows Presentation Foundation « VB.Net Tutorial

1. VB.Net Tutorial
2. Windows Presentation Foundation
3. ApplicationCommands

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="CommandEnabling" Height="300" Width="300"
    >
  <Grid>
    <Menu VerticalAlignment="Top">
      <MenuItem Header="_Edit">
        <MenuItem Command="Redo" />
      </MenuItem>
    </Menu>
  </Grid>
</Window>



//File:Window.xaml.vb

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes


Namespace WpfApplication1
  Public Partial Class Window1
    Inherits System.Windows.Window
    Public Sub New()
      InitializeComponent()

      Dim redoCommandBinding As New CommandBinding(ApplicationCommands.Redo)
      AddHandler redoCommandBinding.CanExecute, AddressOf RedoCommandCanExecute
      CommandBindings.Add(redoCommandBinding)
    End Sub

    Private Sub RedoCommandCanExecute(sender As Object, e As CanExecuteRoutedEventArgs)
      e.CanExecute = DateTime.Now.Second Mod 2 > 1
    End Sub
  End Class
End Namespace

16.93.ApplicationCommands
	16.93.1.	Without focus scope
	16.93.2.	Bind ApplicationCommand to a handler
	16.93.3.	Assign ApplicationCommands.Open to Button
	16.93.4.	Menu with Application command: cut, copy, paste
	16.93.5.	Binding command to ApplicationCommands.Redo
	16.93.6.	Binding Command to ApplicationCommands.New
	16.93.7.	Bind CanExecute to ApplicationCommands.Save
	16.93.8.	Binding ApplicationCommands.New Command to your own handler
	16.93.9.	Change ApplicationCommands.New.Text
	16.93.10.	Call ApplicationCommands.New.Execute to execute the command directly
	16.93.11.	Use CommandBinding to bind ApplicationCommands.New in code
	16.93.12.	Use CommandBinding to Bind to ApplicationCommands
	16.93.13.	Add ApplicationCommands.Cut to TextBox with TextBox.CommandBindings