out.xsd

C# ,DATASET的DEMO,是一个使用DATASET与XML数据源存取数据的源码.

<?xml version="1.0" standalone="yes"?>
<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" msdata:Locale="zh-CN">
    <xs:complexType>
      <xs:choice maxOccurs="unbounded">
        <xs:element name="Customers">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="custid" type="xs:int" minOccurs="0" />
              <xs:element name="custname" type="xs:string" minOccurs="0" />
            </xs:sequence>
          </xs:complexType>
        </xs:element>
        <xs:element name="Orders">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="custid" type="xs:int" minOccurs="0" />
              <xs:element name="orderid" type="xs:int" minOccurs="0" />
            </xs:sequence>
          </xs:complexType>
        </xs:element>
      </xs:choice>
    </xs:complexType>
    <xs:unique name="Constraint1">
      <xs:selector xpath=".//Customers" />
      <xs:field xpath="custid" />
    </xs:unique>
    <xs:keyref name="Relation1" refer="Constraint1">
      <xs:selector xpath=".//Orders" />
      <xs:field xpath="custid" />
    </xs:keyref>
  </xs:element>
</xs:schema>