Control.Show Метод

Определение

Отображает элемент управления.Displays the control to the user.

public:
 void Show();
public void Show ();
member this.Show : unit -> unit
Public Sub Show ()

Примеры

В следующем примере кода отображается диалоговое окно "о программе", которое временно рисует синий квадрат на его поверхности.The following code example displays an about dialog box and temporarily draws a blue square on its surface. В этом примере необходимо определить класс, производный от Form с именем AboutDialog.This example requires that you have defined a class that derives from Form named AboutDialog.

private:
   void menuItemHelpAbout_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      // Create and display a modeless about dialog box.
      AboutDialog^ about = gcnew AboutDialog;
      about->Show();
      
      // Draw a blue square on the form.
      /* NOTE: This is not a persistent object, it will no longer be
                  * visible after the next call to OnPaint. To make it persistent,
                  * override the OnPaint method and draw the square there */
      Graphics^ g = about->CreateGraphics();
      g->FillRectangle( Brushes::Blue, 10, 10, 50, 50 );
   }
private void menuItemHelpAbout_Click(object sender, EventArgs e)
{
   // Create and display a modless about dialog box.
   AboutDialog about = new AboutDialog();
   about.Show();

   // Draw a blue square on the form.
   /* NOTE: This is not a persistent object, it will no longer be
      * visible after the next call to OnPaint. To make it persistent, 
      * override the OnPaint method and draw the square there */
   Graphics g = about.CreateGraphics();
   g.FillRectangle(Brushes.Blue, 10, 10, 50, 50);
}
Private Sub menuItemHelpAbout_Click(sender As Object, _
  e As EventArgs) Handles menuItemHelpAbout.Click
   ' Create and display a modless about dialog box.
   Dim about As New AboutDialog()
   about.Show()
   
   ' Draw a blue square on the form.
   ' NOTE: This is not a persistent object, it will no longer be
   ' visible after the next call to OnPaint. To make it persistent, 
   ' override the OnPaint method and draw the square there 
   Dim g As Graphics = about.CreateGraphics()
   g.FillRectangle(Brushes.Blue, 10, 10, 50, 50)
End Sub

Комментарии

Отображение элемента управления эквивалентно присвоению свойству Visible значения true.Showing the control is equivalent to setting the Visible property to true. После вызова метода Show свойство Visible возвращает значение true до тех пор, пока не будет вызван метод Hide.After the Show method is called, the Visible property returns a value of true until the Hide method is called.

Применяется к

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