Adds the properties of the CustomValidator control to the output stream for rendering on the client.
Assembly: System.Web (in System.Web.dll)
The following code example demonstrates how to override the method in a custom server control so that the CustomValidator error message always appears in bold.
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 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)