Form.Show Method (IWin32Window)

Shows the form with the specified owner to the user.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public void Show (
	IWin32Window owner
public void Show (
	IWin32Window owner
public function Show (
	owner : IWin32Window
Not applicable.



Any object that implements IWin32Window and represents the top-level window that will own this form.

Exception typeCondition


The form specified in the owner parameter is the same as the form being shown.

Showing the form 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.

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

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