Returns the XML Schema for the XML representation of the data stored in the DataSet.
Assembly: System.Data (in System.Data.dll)
Calling this method is identical to calling WriteXmlSchema, except that only the primary schema is written.
returns XML as a string, and therefore requires more overhead than WriteXmlSchema to write XML to a file.
If you build a DataSet using schema inference and serialize it using XML or Web services, the column ordering may change.