Class DelegateCommand

Provides a simple ICommand implementation.

Inheritance
System.Object
DelegateCommand
Namespace: Telerik.Windows.Controls
Assembly: Telerik.Windows.Controls.dll

Syntax

public class DelegateCommand : Object, ICommand

Constructors

DelegateCommand(Action<Object>)

Initializes a new instance of the DelegateCommand class.

Declaration
public DelegateCommand(Action<object> execute)
Parameters
System.Action<System.Object> execute

The execute action.

DelegateCommand(Action<Object>, Predicate<Object>)

Initializes a new instance of the DelegateCommand class.

Declaration
public DelegateCommand(Action<object> execute, Predicate<object> canExecute)
Parameters
System.Action<System.Object> execute

The execute action.
System.Predicate<System.Object> canExecute

The can execute predicate.

Methods

CanExecute(Object)

Defines the method that determines whether the command can execute in its current state.

Declaration
public bool CanExecute(object parameter)
Parameters
System.Object parameter

Data used by the command. If the command does not require data to be passed, this object can be set to null.
Returns
System.Boolean

True if this command can be executed, otherwise - false.

Execute(Object)

Defines the method to be called when the command is invoked.

Declaration
public void Execute(object parameter)
Parameters
System.Object parameter

Data used by the command. If the command does not require data to be passed, this object can be set to null.

InvalidateCanExecute()

Raises the CanExecuteChanged event.

Declaration
public void InvalidateCanExecute()

Events

CanExecuteChanged

Occurs when changes occur that affect whether the command should execute.

Declaration
public event EventHandler CanExecuteChanged
Event Type
System.EventHandler

Extension Methods