System.Runtime.Serialization.Json.JsonWriter.WriteStartAttribute C# (CSharp) Method

		public override void WriteStartAttribute (string prefix, string localName, string ns)
		{
			CheckState ();

			if (state != WriteState.Element)
				throw new XmlException ("Cannot write attribute as this XmlDictionaryWriter is not at element state");

			if (!String.IsNullOrEmpty (ns))
				throw new ArgumentException ("Non-empty namespace URI is not allowed in this XmlDictionaryWriter");
			if (!String.IsNullOrEmpty (prefix))
				throw new ArgumentException ("Non-empty prefix is not allowed in this XmlDictionaryWriter");

			if (localName != "type" && localName != "__type")
				throw new ArgumentException ("Only 'type' and '__type' are allowed as an attribute name in this XmlDictionaryWriter");

			if (state != WriteState.Element)
				throw new InvalidOperationException (String.Format ("Attribute cannot be written in {0} mode", state));

			attr_name = localName;
			state = WriteState.Attribute;
		}