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Control.Show Method

Displays the control to the user.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public void Show ()
public void Show ()
public function Show ()
Not applicable.

Showing the control is equivalent to setting the Visible property to true. After the Show method is called, the Visible property returns a value of true until the Hide method is called.

The following code example displays an about dialog box and temporarily draws a blue square on its surface. 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 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 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.get_Blue(), 10, 10, 50, 50);
} //menuItemHelpAbout_Click

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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