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HtmlWindow.Alert Method

Note: This method is new in the .NET Framework version 2.0.

Displays a message box.

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

public void Alert (
	string message
public void Alert (
	String message
public function Alert (
	message : String



The String to display in the message box.

The MessageBox class offers a more powerful version of the Alert method.

Although Alert accepts Unicode text as input, the Internet Explorer script prompt will not display non-Latin language text appropriately on Windows 95, Windows 98, Windows ME or Windows NT due to operating system limitations. For more information, see INFO: Internet Explorer Script Prompts and MBCS/Unicode (;en-us;211147).

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0