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Control.Show Method

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Displays the control to the user.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
C#
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F#
VB
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public void Show()

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.

C#
C++
VB
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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);
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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