CommandBinding.Command Właściwość

Definicja

Przestrzeń nazw:
System.Windows.Input
Zestaw:
PresentationCore.dll

Pobiera lub ustawia ICommand skojarzone z tym CommandBindingelementem .

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

Wartość właściwości

ICommand

Polecenie skojarzone z tym powiązaniem.

Atrybuty
LocalizabilityAttribute

Przykłady

Poniższy przykład tworzy obiekt CommandBinding , który mapuje ExecutedRoutedEventHandler program obsługi i CanExecuteRoutedEventArgs na Open polecenie .

<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)

Poniżej pokazano, CanExecuteRoutedEventHandler które ustawia wartość CanExecute .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

Poniżej pokazano, ExecutedRoutedEventHandler co powoduje utworzenie MessageBox polecenia po wykonaniu polecenia.

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

Dotyczy

Zobacz też