System.Data.Tests.DataSetTest.WriteXmlModeSchema C# (CSharp) Méthode

        public void WriteXmlModeSchema()
        {
            // This is the MS output of WriteXmlSchema().

            string xml = @"<Example>
  <xs:schema id=""Example"" xmlns="""" xmlns:xs=""http://www.w3.org/2001/XMLSchema"" xmlns:msdata=""urn:schemas-microsoft-com:xml-msdata"">
" +
@"    <xs:element name=""Example"" msdata:IsDataSet=""true"" msdata:UseCurrentLocale=""true"">"
              + @"
      <xs:complexType>
        <xs:choice minOccurs=""0"" maxOccurs=""unbounded"">
          <xs:element name=""Dimension"">
            <xs:complexType>
              <xs:sequence>
                <xs:element name=""Number"" type=""xs:int"" />
              </xs:sequence>
            </xs:complexType>
          </xs:element>
          <xs:element name=""Element"">
            <xs:complexType>
              <xs:sequence>
                <xs:element name=""Dimension"" type=""xs:int"" />
                <xs:element name=""Number"" type=""xs:int"" />
              </xs:sequence>
            </xs:complexType>
          </xs:element>
        </xs:choice>
      </xs:complexType>
      <xs:unique name=""PK_Dimension"" msdata:PrimaryKey=""true"">
        <xs:selector xpath="".//Dimension"" />
        <xs:field xpath=""Number"" />
      </xs:unique>
      <xs:unique name=""PK_Element"" msdata:PrimaryKey=""true"">
        <xs:selector xpath="".//Element"" />
        <xs:field xpath=""Dimension"" />
        <xs:field xpath=""Number"" />
      </xs:unique>
      <xs:keyref name=""FK_Element_To_Dimension"" refer=""PK_Dimension"">
        <xs:selector xpath="".//Element"" />
        <xs:field xpath=""Dimension"" />
      </xs:keyref>
    </xs:element>
  </xs:schema>
  <Dimension>
    <Number>0</Number>
  </Dimension>
  <Dimension>
    <Number>1</Number>
  </Dimension>
  <Element>
    <Dimension>0</Dimension>
    <Number>0</Number>
  </Element>
  <Element>
    <Dimension>0</Dimension>
    <Number>1</Number>
  </Element>
  <Element>
    <Dimension>0</Dimension>
    <Number>2</Number>
  </Element>
  <Element>
    <Dimension>0</Dimension>
    <Number>3</Number>
  </Element>
  <Element>
    <Dimension>1</Dimension>
    <Number>0</Number>
  </Element>
  <Element>
    <Dimension>1</Dimension>
    <Number>1</Number>
  </Element>
</Example>";
            DataSet ds = new DataSet("Example");

            // Dimension DataTable
            DataTable dt1 = new DataTable("Dimension");
            ds.Tables.Add(dt1);

            dt1.Columns.Add(new DataColumn("Number", typeof(int)));
            dt1.Columns["Number"].AllowDBNull = false;

            dt1.Constraints.Add("PK_Dimension", dt1.Columns["Number"], true);

            // Element DataTable
            DataTable dt2 = new DataTable("Element");
            ds.Tables.Add(dt2);

            dt2.Columns.Add(new DataColumn("Dimension", typeof(int)));
            dt2.Columns["Dimension"].AllowDBNull = false;

            dt2.Columns.Add(new DataColumn("Number", typeof(int)));
            dt2.Columns["Number"].AllowDBNull = false;

            dt2.Constraints.Add("PK_Element", new DataColumn[] {
                dt2.Columns ["Dimension"],
                dt2.Columns ["Number"] },
                true);

            // Add DataRelations
            ds.Relations.Add("FK_Element_To_Dimension",
                dt1.Columns["Number"],
                dt2.Columns["Dimension"], true);

            // Add 2 Dimensions
            for (int i = 0; i < 2; i++)
            {
                DataRow newRow = dt1.NewRow();
                newRow["Number"] = i;
                dt1.Rows.Add(newRow);
            }

            // Dimension 0 => 4 Elements
            for (int i = 0; i < 4; i++)
            {
                DataRow newRow = dt2.NewRow();
                newRow["Dimension"] = 0;
                newRow["Number"] = i;
                dt2.Rows.Add(newRow);
            }

            // Dimension 1 => 2 Elements
            for (int i = 0; i < 2; i++)
            {
                DataRow newRow = dt2.NewRow();
                newRow["Dimension"] = 1;
                newRow["Number"] = i;
                dt2.Rows.Add(newRow);
            }

            ds.AcceptChanges();

            StringWriter sw = new StringWriter();
            ds.WriteXml(sw, XmlWriteMode.WriteSchema);

            string result = sw.ToString();

            Assert.Equal(result.Replace("\r\n", "\n"), xml.Replace("\r\n", "\n"));
        }