TextBox::OnPreRender Method
Registers client script for generating postback events prior to rendering on the client, if AutoPostBack is true.
Assembly: System.Web (in System.Web.dll)
The following code example demonstrates how to override the OnPreRender method so that it always displays a one-point border in a custom TextBox server control.
Security Note |
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This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview. |
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Security Note