#1,083 – Setting CommandBindings in XAML

You can configure command bindings in code-behind, adding a CommandBinding object to a top-level window’s CommandBindings collection, as follows:

        public MainWindow()
        {
            InitializeComponent();
            this.DataContext = this;

            this.CommandBindings.Add(new CommandBinding(ApplicationCommands.Open,
                Executed_Open, CanExecute_Open));
        }

You can set this command binding up in XAML, rather than in code-behind.  Below is an example of doing the same binding in XAML.

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Commands" Width="320" Height="220">

    <Window.CommandBindings>
        <CommandBinding Command="ApplicationCommands.Open"
                        Executed="Executed_Open"
                        CanExecute="CanExecute_Open"/>
    </Window.CommandBindings>

    <StackPanel>
        <Button Content="Open" Command="ApplicationCommands.Open"
                Margin="10" Padding="10,3"
                HorizontalAlignment="Center" />
        <CheckBox Content="Can Open" IsChecked="{Binding CanOpenIsChecked}"
                  Margin="10"/>
    </StackPanel>
</Window>

This assumes that you’ve defined the following methods in code-behind:

        public void Executed_Open(object sender, ExecutedRoutedEventArgs e)
        {
            MessageBox.Show("Executing the Open command");
        }

        public void CanExecute_Open(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = CanOpenIsChecked;
        }

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

2 Responses to #1,083 – Setting CommandBindings in XAML

  1. Pingback: Dew Drop – May 30, 2014 (#1787) | Morning Dew

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