MenuItem.PerformSelect Método

Definición

Provoca el evento Select para este elemento de menú.Raises the Select event for this menu item.

public:
 virtual void PerformSelect();
public virtual void PerformSelect ();
abstract member PerformSelect : unit -> unit
override this.PerformSelect : unit -> unit
Public Overridable Sub PerformSelect ()

Ejemplos

En este ejemplo, puede seleccionar un elemento de menú mediante programación usando PerformSelect el método.In this example you programmatically select a menu item by using the PerformSelect method. En primer lugar, se crea un menúmainMenu1principal () y se agregan dos elementos menuItem1 deFilemenú, menuItem2 (Edit) y ().First, you create a main menu (mainMenu1) and add to it two menu items, menuItem1 (File) and menuItem2 (Edit). También puede usar el Select evento para enviar datos al controlador de eventos cuando se selecciona un elemento de menú.You also use the Select event to send data to the event handler when a menu item is selected. A continuación, use PerformSelect el método para seleccionar File el elemento de menú.Then you use the PerformSelect method to select the File menu item. Al iniciar la aplicación, se selecciona File el elemento de menú y un cuadro de mensaje que contiene el texto "el menú archivo está seleccionado".When you start the application, the File menu item is selected, and a message box that contains the text "The File menu is selected." aparece en la pantalla.appears on the screen. El ejemplo requiere que se haya creado un Form denominado Form1.The example requires that you have created a Form named Form1.

public:
   void CreateMyMenu()
   {
      // Create a main menu objects.
      MainMenu^ mainMenu1 = gcnew MainMenu;

      // Create empty menu item objects.
      MenuItem^ menuItem1 = gcnew MenuItem;
      MenuItem^ menuItem2 = gcnew MenuItem;

      // Set the caption of the menu items.
      menuItem1->Text = "&File";
      menuItem2->Text = "&Edit";

      // Add the menu items to the main menu.
      mainMenu1->MenuItems->Add( menuItem1 );
      mainMenu1->MenuItems->Add( menuItem2 );

      // Add functionality to the menu items.
      menuItem1->Select += gcnew System::EventHandler( this, &Form1::menuItem1_Select );
      menuItem2->Select += gcnew System::EventHandler( this, &Form1::menuItem2_Select );

      // Assign mainMenu1 to the form.
      this->Menu = mainMenu1;

      // Select the File menu item.
      menuItem1->PerformSelect();
   }

private:
   void menuItem1_Select( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      MessageBox::Show( "You selected the File menu.", "The Event Information" );
   }

   void menuItem2_Select( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      MessageBox::Show( "You selected the Edit menu.", "The Event Information" );
   }
public void CreateMyMenu()
{
    // Create a main menu object.
    MainMenu mainMenu1 = new MainMenu();

    // Create empty menu item objects.
    MenuItem menuItem1 = new MenuItem();
    MenuItem menuItem2 = new MenuItem();

    // Set the caption of the menu items.
    menuItem1.Text = "&File";
    menuItem2.Text = "&Edit";

    // Add the menu items to the main menu.
    mainMenu1.MenuItems.Add(menuItem1);
    mainMenu1.MenuItems.Add(menuItem2);
    
    // Add functionality to the menu items. 
    menuItem1.Select += new System.EventHandler(this.menuItem1_Select);
    menuItem2.Select += new System.EventHandler(this.menuItem2_Select);
    
    // Assign mainMenu1 to the form.
    this.Menu=mainMenu1;

    // Select the File menu item.
    menuItem1.PerformSelect();
}

private void menuItem1_Select(object sender, System.EventArgs e)
{	
    MessageBox.Show("You selected the File menu.","The Event Information");		
}

private void menuItem2_Select(object sender, System.EventArgs e)
{
    MessageBox.Show("You selected the Edit menu.","The Event Information");		
}
Public Sub CreateMyMenu()
    ' Create a main menu object.
    Dim mainMenu1 As New MainMenu()

    ' Create empty menu item objects.
    Dim menuItem1 As New MenuItem()
    Dim menuItem2 As New MenuItem()

    ' Set the caption of the menu items.
    menuItem1.Text = "&File"
    menuItem2.Text = "&Edit"

    ' Add the menu items to the main menu.
    mainMenu1.MenuItems.Add(menuItem1)
    mainMenu1.MenuItems.Add(menuItem2)

    ' Add functionality to the menu items. 
    AddHandler menuItem1.Select, AddressOf Me.menuItem1_Select
    AddHandler menuItem2.Select, AddressOf Me.menuItem2_Select

    ' Assign mainMenu1 to the form.
    Me.Menu = mainMenu1

    ' Select the File menu item.
    menuItem1.PerformSelect()
End Sub


Private Sub menuItem1_Select(ByVal sender As Object, ByVal e As System.EventArgs)
    MessageBox.Show("You selected the File menu.", "The Event Information")
End Sub


Private Sub menuItem2_Select(ByVal sender As Object, ByVal e As System.EventArgs)
    MessageBox.Show("You selected the Edit menu.", "The Event Information")
End Sub

Comentarios

Este método permite generar el Select evento sin pasar información de evento al controlador de eventos.This method allows you to raise the Select event without passing any event information to the event handler.

Se aplica a

Consulte también: