Intersoft ClientUI Documentation
How-to: Use Class Binding to Implement a RoutedCommand
Intersoft ClientUI 8 > ClientUI Fundamentals > Commanding Overview > Commanding How-to Topics > How-to: Use Class Binding to Implement a RoutedCommand

This example shows how to use class command binding API to register a routed command on a specific type rather than an instance.

Example

Description

In addition to instance command binding, the commanding framework in ClientUI also supports class command binding API which is available in the CommandManager class. The class command binding is particularly useful when you have a fairly large amount of commands to bind to the controls.

The following code example shows how to use class command binding API to register a routed command on a specific type rather than an instance.

Code

XAML
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<Intersoft:UXPage 
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:Intersoft="http://intersoft.clientui.com/schemas"
        xmlns:Commands="clr-namespace:ClientUIApplication_Docs.Commands"
        mc:Ignorable="d"
        x:Class="ClientUIApplication_Docs.RoutedCommands.ClassCommandBinding" 
        Title="CommandOverview Page"
        d:DesignWidth="640" d:DesignHeight="480">

        <Grid x:Name="LayoutRoot">

            <Intersoft:DockPanel Name="dockPanel1" FillChildMode="Custom">
                <Intersoft:UXToolBar Name="toolBar1" Intersoft:DockPanel.Dock="Top">
                    <Intersoft:UXToolBarButton Name="btn_Cut" Command="Commands:EditingCommands.Cut" DisplayMode="Image" Icon="../Images/CutHS.png" ToolTipService.ToolTip="Cut"/>
                </Intersoft:UXToolBar>
                <Intersoft:UXTextBox Name="textBox1" Text="Type your text here..." Intersoft:DockPanel.IsFillElement="True" />
            </Intersoft:DockPanel>

        </Grid>
<Intersoft:UXPage>
C#
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using System.Windows;
using ClientUIApplication_Docs.Commands;
using Intersoft.Client.Framework.Input;
using Intersoft.Client.UI.Navigation;

namespace ClientUIApplication_Docs.RoutedCommands
{
    public partial class ClassCommandBinding : UXPage
    {
        public ClassCommandBinding()
        {
            // It is important to initialize the static EditingCommands class
            // before InitializeComponent is called
            EditingCommands.Initialize();
            InitializeComponent();
        }

        static ClassCommandBinding()
        {
            RoutedUICommand[] commands = new RoutedUICommand[] 
            {
                EditingCommands.Cut, EditingCommands.Copy, EditingCommands.Paste
            };

            // register class-level command binding for RoutedUICommand
            foreach (RoutedUICommand command in commands)
            {
                CommandManager.RegisterClassCommandBinding(
                    typeof(UXPage),
                    new CommandBinding(command, OnCommandExecuted, OnCanExecute));
            }
        }

        private static void OnCanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
        }

        private static void OnCommandExecuted(object sender, ExecutedRoutedEventArgs e)
        {
            string command = ((RoutedCommand)e.Command).Name;
            string target = ((FrameworkElement)e.OriginalSource).Name;

            MessageBox.Show("The " + command + " command has been invoked on target object " + target);
        }
    }
}

To learn how to create the routed commands for EditingCommands used in the above example, see How-to: Create Routed Commands In a Static Class.

See Also

Concepts

Commanding Overview

Other Resources

Locating the Samples in Local Installation
Commanding How-to Topics
Walkthroughs and How-to Topics