MenuCommand(EventHandler, CommandID) Konstruktor

Definition

Namespace:
System.ComponentModel.Design
Assemblys:
netstandard.dll, System.ComponentModel.TypeConverter.dll
Assembly:
System.ComponentModel.TypeConverter.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Quelle:
MenuCommand.cs
Quelle:
MenuCommand.cs
Quelle:
MenuCommand.cs
Quelle:
MenuCommand.cs
Quelle:
MenuCommand.cs

Initialisiert eine neue Instanz der MenuCommand-Klasse.

public:
 MenuCommand(EventHandler ^ handler, System::ComponentModel::Design::CommandID ^ command);
public MenuCommand(EventHandler? handler, System.ComponentModel.Design.CommandID? command);
public MenuCommand(EventHandler handler, System.ComponentModel.Design.CommandID command);
new System.ComponentModel.Design.MenuCommand : EventHandler * System.ComponentModel.Design.CommandID -> System.ComponentModel.Design.MenuCommand
Public Sub New (handler As EventHandler, command As CommandID)

Parameter

handler
EventHandler

Das Ereignis, das ausgelöst werden soll, wenn der Benutzer das Menüelement oder die Symbolleistenschaltfläche auswählt.

command
CommandID

Die eindeutige Befehls-ID, die diesen Menübefehl mit dem Menü der Umgebung verknüpft.

Beispiele

Im folgenden Codebeispiel wird ein MenuCommand Objekt erstellt, seine Eigenschaften konfiguriert und einem IMenuCommandService Objekt hinzugefügt.

   public ref class CDesigner: public ComponentDesigner
   {
   public:
    [PermissionSetAttribute(SecurityAction::Demand, Name="FullTrust")]
      virtual void Initialize( IComponent^ comp ) override
      {
         ComponentDesigner::Initialize( comp );
         IMenuCommandService^ mcs = static_cast<IMenuCommandService^>(comp->Site->GetService( IMenuCommandService::typeid ));
         MenuCommand^ mc = gcnew MenuCommand( gcnew EventHandler( this, &CDesigner::OnF1Help ),StandardCommands::F1Help );
         mc->Enabled = true;
         mc->Visible = true;
         mc->Supported = true;
         mcs->AddCommand( mc );
         System::Windows::Forms::MessageBox::Show( "Initialize() has been invoked." );
      }

   private:
      void OnF1Help( Object^ /*sender*/, EventArgs^ /*e*/ )
      {
         System::Windows::Forms::MessageBox::Show( "F1Help has been invoked." );
      }
   };
}

public class CDesigner : System.ComponentModel.Design.ComponentDesigner 
{
    public override void Initialize(IComponent comp) 
    {
        base.Initialize(comp);

        IMenuCommandService mcs = (IMenuCommandService)comp.Site.
                    GetService(typeof(IMenuCommandService));
        MenuCommand mc = new MenuCommand(new EventHandler(OnF1Help), StandardCommands.F1Help);
        mc.Enabled = true;
        mc.Visible = true;
        mc.Supported = true;
        mcs.AddCommand(mc);
        System.Windows.Forms.MessageBox.Show("Initialize() has been invoked.");
    }

    private void OnF1Help(object sender, EventArgs e) 
    {
        System.Windows.Forms.MessageBox.Show("F1Help has been invoked.");
    }
}

<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
Public Class CDesigner
    Inherits System.ComponentModel.Design.ComponentDesigner

    Public Overrides Sub Initialize(ByVal comp As IComponent)
        MyBase.Initialize(comp)

        Dim mcs As IMenuCommandService = CType(comp.Site.GetService(GetType(IMenuCommandService)), IMenuCommandService)
        Dim mc As New MenuCommand(New EventHandler(AddressOf OnF1Help), StandardCommands.F1Help)
        mc.Enabled = True
        mc.Visible = True
        mc.Supported = True
        mcs.AddCommand(mc)
        System.Windows.Forms.MessageBox.Show("Initialize() has been invoked.")
    End Sub

    Private Sub OnF1Help(ByVal sender As Object, ByVal e As EventArgs)
        System.Windows.Forms.MessageBox.Show("F1Help has been invoked.")
    End Sub
End Class

Gilt für:

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