Control.Show Méthode
Définition
Affiche le contrôle à l'utilisateur.Displays the control to the user.
public:
void Show();
public void Show ();
member this.Show : unit -> unit
Public Sub Show ()
Exemples
L’exemple de code suivant affiche une boîte de dialogue à propos de et dessine temporairement un carré bleu sur sa surface.The following code example displays an about dialog box and temporarily draws a blue square on its surface. Cet exemple requiert que vous ayez défini une classe qui dérive de Form nommée 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
Remarques
L’indication du contrôle équivaut à définir la propriété Visible sur true
.Showing the control is equivalent to setting the Visible property to true
. Après l’appel de la méthode Show, la propriété Visible retourne la valeur true
jusqu’à ce que la méthode Hide soit appelée.After the Show method is called, the Visible property returns a value of true
until the Hide method is called.