SNullValue global variable contains string value, which is used to represent Null or nil values in some serialization formats.

SNullValue global variable value is used to represent Null or nil values serialized using TSerializer.Value or  TSerializer.Null methods. Some human readable output formats, such as XML or JSON can use this value to format output documents.

The value of SNullValue variable can be changed by the user at run-time to adjust generated document formatting.

Reference

• NG.Serialization.Xml.SNullValue
• NG.Serialization.Xml Namespace