CommandBinding.Command Proprietà

Definizione

Spazio dei nomi:

System.Windows.Input

Assembly:

PresentationCore.dll

Ottiene o imposta l'oggetto ICommand associato a CommandBinding.

public:
 property System::Windows::Input::ICommand ^ Command { System::Windows::Input::ICommand ^ get(); void set(System::Windows::Input::ICommand ^ value); };

[System.Windows.Localizability(System.Windows.LocalizationCategory.NeverLocalize)]
public System.Windows.Input.ICommand Command { get; set; }

[<System.Windows.Localizability(System.Windows.LocalizationCategory.NeverLocalize)>]
member this.Command : System.Windows.Input.ICommand with get, set

Public Property Command As ICommand

Valore della proprietà

ICommand

Comando associato a questa associazione.

Attributi

LocalizabilityAttribute

Esempio

Nell'esempio seguente viene creato un CommandBinding oggetto che esegue il mapping di un ExecutedRoutedEventHandler gestore e CanExecuteRoutedEventArgs al Open comando.

<Window.CommandBindings>
  <CommandBinding Command="ApplicationCommands.Open"
                  Executed="OpenCmdExecuted"
                  CanExecute="OpenCmdCanExecute"/>
</Window.CommandBindings>

// Creating CommandBinding and attaching an Executed and CanExecute handler
CommandBinding OpenCmdBinding = new CommandBinding(
    ApplicationCommands.Open,
    OpenCmdExecuted,
    OpenCmdCanExecute);

this.CommandBindings.Add(OpenCmdBinding);

' Creating CommandBinding and attaching an Executed and CanExecute handler
Dim OpenCmdBinding As New CommandBinding(ApplicationCommands.Open, AddressOf OpenCmdExecuted, AddressOf OpenCmdCanExecute)

Me.CommandBindings.Add(OpenCmdBinding)

Di seguito viene illustrato il CanExecuteRoutedEventHandler valore impostato CanExecute su true.

void OpenCmdCanExecute(object sender, CanExecuteRoutedEventArgs e)
{
    e.CanExecute = true;
}

Private Sub OpenCmdCanExecute(ByVal sender As Object, ByVal e As CanExecuteRoutedEventArgs)
    e.CanExecute = True
End Sub

Di seguito viene illustrato il ExecutedRoutedEventHandler che crea un oggetto MessageBox quando viene eseguito il comando.

void OpenCmdExecuted(object target, ExecutedRoutedEventArgs e)
{
    String command, targetobj;
    command = ((RoutedCommand)e.Command).Name;
    targetobj = ((FrameworkElement)target).Name;
    MessageBox.Show("The " + command +  " command has been invoked on target object " + targetobj);
}

Private Sub OpenCmdExecuted(ByVal sender As Object, ByVal e As ExecutedRoutedEventArgs)
    Dim command, targetobj As String
    command = CType(e.Command, RoutedCommand).Name
    targetobj = CType(sender, FrameworkElement).Name
    MessageBox.Show("The " + command + " command has been invoked on target object " + targetobj)
End Sub

Vedi anche

• RoutedCommand
• InputBinding
• CommandManager