HtmlTextWriter::IsAttributeDefined Method (HtmlTextWriterAttribute, String%)
Determines whether the specified markup attribute and its value are rendered during the next call to the RenderBeginTag method.
Assembly: System.Web (in System.Web.dll)
protected: bool IsAttributeDefined( HtmlTextWriterAttribute key, [OutAttribute] String^% value )
Parameters
- key
- Type: System.Web.UI::HtmlTextWriterAttribute
The HtmlTextWriterAttribute associated with the markup attribute.
- value
- Type: System::String%
The value assigned to the attribute.
Return Value
Type: System::Booleantrue if the attribute is rendered during the next call to the RenderBeginTag method; otherwise, false.
If the IsAttributeDefined method returns true, the value to be assigned to the HtmlTextWriterAttribute object is returned in the value parameter.
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.