CommandBinding.Command Tulajdonság

Definíció

Névtér:

System.Windows.Input

Szerelvény:

PresentationCore.dll

Lekéri vagy beállítja a ICommand társított elemet.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

Tulajdonság értéke

ICommand

A kötéshez társított parancs.

Attribútumok

LocalizabilityAttribute

Példák

Az alábbi példa létrehoz egy olyan objektumot CommandBinding , amely egy kezelőt és egy ExecutedRoutedEventHandler kezelőt CanExecuteRoutedEventArgs képez le a Open parancshoz.

<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)

Az alábbiakban az látható, CanExecuteRoutedEventHandler hogy melyik értékre van állítódva CanExecutetrue.

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

Az alábbiakban látható, ExecutedRoutedEventHandler hogy melyik hozza létre MessageBox a parancs végrehajtásakor.

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

Lásd még

• RoutedCommand
• InputBinding
• CommandManager