Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

ToolTip.Show Method (String, IWin32Window, Int32)

Sets the ToolTip text associated with the specified control, and then displays the ToolTip for the specified duration.

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

public void Show (
	string text,
	IWin32Window window,
	int duration
public void Show (
	String text, 
	IWin32Window window, 
	int duration
public function Show (
	text : String, 
	window : IWin32Window, 
	duration : int
Not applicable.



A String containing the new ToolTip text.


The Control to display the ToolTip for.


An Int32 containing the duration, in milliseconds, to display the ToolTip.

Exception typeCondition


The window parameter is a null reference (Nothing in Visual Basic).


duration is less than or equal to 0.

The ToolTip is positioned in the center of the associated control represented by the win parameter. To display the ToolTip modally, call the Show(String,IWin32Window) overloaded version of this method instead.

Applications running in partial trust must assert the AllWindows permission to use this method, as Show can control the display and location of a ToolTip independent of user action.

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

Community Additions

© 2015 Microsoft