System.Runtime.Serialization.Json.XmlJsonWriter.WriteProcessingInstruction C# (CSharp) Method

        public override void WriteProcessingInstruction(string name, string text)
        {
            if (IsClosed)
            {
                ThrowClosed();
            }

            if (!name.Equals("xml", StringComparison.OrdinalIgnoreCase))
            {
                throw new ArgumentException(SR.JsonXmlProcessingInstructionNotSupported, nameof(name));
            }

            if (WriteState != WriteState.Start)
            {
                throw new XmlException(SR.JsonXmlInvalidDeclaration);
            }
        }