Control.Show Control.Show Control.Show Control.Show Method

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 продукте» и временно отображает 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 требуется, что вы определили 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 заданию Visible свойства true.Showing the control is equivalent to setting the Visible property to true. После Show вызывается метод, Visible свойство возвращает значение true пока Hide вызывается метод.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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