XhtmlTextWriter::IsValidFormAttribute Method
Checks an XHTML attribute to ensure that it can be rendered in the opening tag of a <form> element.
Assembly: System.Web (in System.Web.dll)
Parameters
- attributeName
- Type: System::String
The attribute name to check.
Return Value
Type: System::Booleantrue if the attribute can be applied to a <form> element; otherwise, false.
The following code example is part of a larger example that creates a custom Label control and an adapter that renders the content of the control as XHTML.
This code example demonstrates how to create a Boolean variable named attTest and set it to the return value that results from calling the IsValidFormAttribute method with the parameter value "style". If the IsValidFormAttribute method returns true, the styles that are associated with the control are rendered using the HtmlTextWriter::EnterStyle and HtmlTextWriter::ExitStyle methods. If the attTest value is false, the styles are not rendered. Instead, the page displays the text for the control, a <br/> element that is rendered by the WriteBreak method, and a text string informing the user that the XHTML content of the control has rendered conditionally.
This code example is part of a larger example provided for the XhtmlTextWriter class.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.