Class RelayCommand

Implements command relaying by invoking defined action

Inheritance

System.Object

RelayCommand

Implements

ICommand

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: EmptyKeys.UserInterface.Input

Assembly: EmptyKeys.UserInterface.dll

Syntax

public class RelayCommand : ICommand

Constructors

RelayCommand(Action<Object>)

Initializes a new instance of the RelayCommand class.

Declaration

public RelayCommand(Action<object> execute)

Parameters

Type	Name	Description
System.Action<System.Object>	execute	The execute.

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

Initializes a new instance of the RelayCommand class.

Declaration

public RelayCommand(Action<object> execute, Predicate<object> canExecute)

Parameters

Type	Name	Description
System.Action<System.Object>	execute	The execute.
System.Predicate<System.Object>	canExecute	The can execute.

Exceptions

Type	Condition
System.ArgumentNullException	execute

Methods

CanExecute(Object)

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

Declaration

public bool CanExecute(object parameter)

Parameters

Type	Name	Description
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

Type	Description
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

Type	Name	Description
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.

Implements

ICommand