Bind CanExecute to ApplicationCommands.Save : ApplicationCommand « Windows Presentation Foundation « C# / CSharp Tutorial






<Window x:Class="Commands.TwoDocument"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="TwoDocument" Height="300" Width="300">

  <Window.Resources>
    <CommandBinding x:Key="binding" Command="ApplicationCommands.Save" Executed="SaveCommand" CanExecute="SaveCommand_CanExecute" />
  </Window.Resources>

  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="Auto"></RowDefinition>
      <RowDefinition Height="Auto"></RowDefinition>
      <RowDefinition></RowDefinition>
      <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <Menu Grid.Row="0">
      <MenuItem Header="File">
        <MenuItem Command="New"></MenuItem>
        <MenuItem Command="Open"></MenuItem>
        <MenuItem Command="Save"></MenuItem>
        <MenuItem Command="SaveAs"></MenuItem>
        <Separator></Separator>
        <MenuItem Command="Close"></MenuItem>
      </MenuItem>
    </Menu>

    <TextBox Margin="5" Grid.Row="2" TextWrapping="Wrap" AcceptsReturn="True" TextChanged="txt_TextChanged">
      <TextBox.CommandBindings>
        <StaticResource ResourceKey="binding"></StaticResource>
      </TextBox.CommandBindings>
    </TextBox>

  </Grid>
</Window>
//File:Window.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace Commands
{
    public partial class TwoDocument : System.Windows.Window
    {
        public TwoDocument()
        {
            InitializeComponent();
        }

        private void SaveCommand(object sender, ExecutedRoutedEventArgs e)
        {            
        }
        private void txt_TextChanged(object sender, RoutedEventArgs e)
        {
        }
        private void SaveCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = false;
        }
    }
}
WPF Bind Can Execute To Application Commands Save








24.137.ApplicationCommand
24.137.1.Bind ApplicationCommand to a handlerBind ApplicationCommand to a handler
24.137.2.Assign ApplicationCommands.Open to ButtonAssign ApplicationCommands.Open to Button
24.137.3.Binding command to ApplicationCommands.RedoBinding command to ApplicationCommands.Redo
24.137.4.Binding Command to ApplicationCommands.NewBinding Command to ApplicationCommands.New
24.137.5.Bind CanExecute to ApplicationCommands.SaveBind CanExecute to ApplicationCommands.Save
24.137.6.Binding ApplicationCommands.New Command to your own handlerBinding ApplicationCommands.New Command to your own handler
24.137.7.Change ApplicationCommands.New.TextChange ApplicationCommands.New.Text
24.137.8.Call ApplicationCommands.New.Execute to execute the command directlyCall ApplicationCommands.New.Execute to execute the command directly
24.137.9.Use CommandBinding to bind ApplicationCommands.New in codeUse CommandBinding to bind ApplicationCommands.New in code
24.137.10.Use CommandBinding to Bind to ApplicationCommandsUse CommandBinding to Bind to ApplicationCommands
24.137.11.Add ApplicationCommands.Cut to TextBox with TextBox.CommandBindingsAdd ApplicationCommands.Cut to TextBox with TextBox.CommandBindings