Commands

Updated on Jan 6, 2026

The RadButtons provide a standard ICommandSource implementation and allow you to bind your buttons to commands that will be executed on click. To take advantage of the ICommandSource implementation, use the following properties:

• Command—Gets the command that will be executed when the command source is invoked.

• CommandParameter—Represents a user-defined data value that can be passed to the command when it is executed.

• CommandTarget—The object on which the command is being executed.

RadButtons implement the ICommandSource, so you can use them with any command that implements the ICommand interface. For example, the DelegateCommand class.

Using Commands in MVVM

The following example demonstrates how to use commands in an MVVM scenario.

1. Define the command in a sample view model class.

   C#

   public class SampleViewModel
   {
   	public SampleViewModel()
   	{
   		MyCommand = new DelegateCommand(OnCommandExecuted);
   	}
   	public ICommand MyCommand { get; set; }
   
   	private void OnCommandExecuted(object obj)
   	{
   		MessageBox.Show("MyCommand Executed");
   	} 
   }

   VB.NET

   Public Class SampleViewModel
   	Public Sub New()
   		MyCommand = New DelegateCommand(AddressOf OnCommandExecuted)
   	End Sub
   
   	Public Property MyCommand As ICommand
   
   	Private Sub OnCommandExecuted(ByVal obj As Object)
   		MessageBox.Show("MyCommand Executed")
   	End Sub
   End Class

2. Set a SampleViewModel object instance as the DataContext of your corresponding view (the UserControl or Window).

   C#

   	public Example()
   	{
   		InitializeComponent();
   		this.DataContext = new SampleViewModel();
   	}

   VB.NET

   	Public Sub New()
   		InitializeComponent()
   		Me.DataContext = New SampleViewModel()
   	End Sub

3. In the XAML set the bindings for the command and set the command parameter.

   XAML

   	<telerik:RadButton Content="My Button"
   					Command="{Binding MyCommand}"
   					CommandParameter="ParameterValue" />

   RadButton is located in the Telerik.Windows.Controls.dll assembly. To use them in your project, add a reference to the assembly or install the Telerik.Windows.Controls.for.Wpf.Xaml NuGet package (or its NoXaml alternative). For more information, see the Controls Dependencies article.

   Then in XAML you have to declare the namespace: xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

This is a very basic sample, but you can apply this approach to any type of commands that implement the ICommand interface.

See Also

• Button
• Events