HtmlTextWriter.AddAttribute Method (String, String, Boolean)
Assembly: System.Web (in System.Web.dll)
Use the HtmlTextWriterAttribute values, or if the attribute is not known until run time and encoding is needed.overload of the method if the attribute is not one of the
For an instance of any given markup element, the HtmlTextWriter class maintains a list of attributes for that element. When the RenderBeginTag method is called, any attributes added by the AddAttribute method are rendered to the opening tag of the element. The list of attributes is then cleared from the HtmlTextWriter object.
Use themethod with fEncode set to true, if the attribute can possibly contain a quotation mark ("), a less than sign (<), or an ampersand (&). The method call will encode the attribute to meet the requirements of the requesting device. You can set fEncode to false, if you know that none of these characters will be generated, or if you know that the attribute is already encoded.
The coding pattern for rendering markup elements is as follows:
The following code example shows how to use the myattribute, and its value are not encoded for an <img> element.overload of the method to ensure that a custom attribute, named
// Control the encoding of attributes. // Simple known values do not need encoding. writer.AddAttribute(HtmlTextWriterAttribute.Alt, "Encoding, \"Required\"", true); writer.AddAttribute("myattribute", "No "encoding " required", false); writer.RenderBeginTag(HtmlTextWriterTag.Img); writer.RenderEndTag(); writer.WriteLine();
Available since 1.1