MenuCommand(EventHandler, CommandID) Oluşturucu

Tanım

Ad Alanı:

System.ComponentModel.Design

Bütünleştirilmiş Kod:

System.ComponentModel.TypeConverter.dll

Kaynak:

MenuCommand.cs

MenuCommand sınıfının yeni bir örneğini başlatır.

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)

Parametreler

handler

EventHandler

Kullanıcı menü öğesini veya araç çubuğu düğmesini seçtiğinde tetiklene olay.

command

CommandID

Bu menü komutunu ortamın menüsüne bağlayan benzersiz komut kimliği.

Örnekler

Aşağıdaki kod örneği bir MenuCommand nesnesi oluşturur, özelliklerini yapılandırıp bir IMenuCommandService nesneye ekler.

   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

Ayrıca bkz.

• IMenuCommandService
• CommandID