idbAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;This adds the complete schema to the XML string.
><NewDataSet> > <xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> > <xs:element name="NewDataSet" msdata:IsDataSet="true"> > <xs:complexType> > <xs:choice maxOccurs="unbounded"> > <xs:element name="Table"> > <xs:complexType> > <xs:sequence> > <xs:element name="code" type="xs:string" minOccurs="0" /> > <xs:element name="descr" type="xs:string" minOccurs="0" /> > </xs:sequence> > </xs:complexType> > </xs:element> > </xs:choice> > </xs:complexType> > </xs:element> > </xs:schema> > <Table> > <code>S1</code> > <descr>TEST </descr> > <descrf>TEST DESCR </descrf> > </Table> ></NewDataSet> >>