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HtmlTextWriter.AddAttribute Method (String, String, HtmlTextWriterAttribute)

Adds the specified markup attribute and value, along with an HtmlTextWriterAttribute enumeration value, to the opening tag of the element that the HtmlTextWriter object creates with a subsequent call to the RenderBeginTag method.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

protected virtual void AddAttribute(
	string name,
	string value,
	HtmlTextWriterAttribute key


Type: System.String
A string containing the name of the attribute to add.
Type: System.String
A string containing the value to assign to the attribute.
Type: System.Web.UI.HtmlTextWriterAttribute
An HtmlTextWriterAttribute that represents the attribute.

Use the AddAttribute overload of the AddAttribute(String, String, HtmlTextWriterAttribute) method only when inheriting from the HtmlTextWriter class. It enables you to create new name and key pairs for attributes.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

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.