Writes any pending tab spacing and a formatted string containing the text representation of an object, followed by a line terminator string, to the output stream.
The default line terminator string is a carriage return followed by a line feed ("\r\n"). The HtmlTextWriter.WriteLine(string, object) method uses the same semantics as the string.Format(string, object) method. The erload:System.IO.TextWriter.WriteLine base method is used to write the value parameter.