System.Data.Tests.DataSetTest.WriteXmlSchema4 C# (CSharp) Method

        public void WriteXmlSchema4()
        {
            string xmlschema = @"<?xml version=""1.0"" encoding=""utf-16""?>
<xs:schema id=""Example"" xmlns="""" xmlns:xs=""http://www.w3.org/2001/XMLSchema"" xmlns:msdata=""urn:schemas-microsoft-com:xml-msdata"">
";
            xmlschema = xmlschema + "  <xs:element name=\"Example\" msdata:IsDataSet=\"true\" msdata:UseCurrentLocale=\"true\"";
            xmlschema = xmlschema + @">
    <xs:complexType>
      <xs:choice minOccurs=""0"" maxOccurs=""unbounded"">
        <xs:element name=""MyType"">
          <xs:complexType>
            <xs:attribute name=""ID"" type=""xs:int"" use=""required"" />
            <xs:attribute name=""Desc"" type=""xs:string"" />
          </xs:complexType>
        </xs:element>
      </xs:choice>
    </xs:complexType>
  </xs:element>
</xs:schema>";
            DataSet ds = new DataSet("Example");

            // Add MyType DataTable
            DataTable dt = new DataTable("MyType");
            ds.Tables.Add(dt);

            dt.Columns.Add(new DataColumn("ID", typeof(int), "",
                MappingType.Attribute));
            dt.Columns["ID"].AllowDBNull = false;

            dt.Columns.Add(new DataColumn("Desc", typeof
                (string), "", MappingType.Attribute));

            ds.AcceptChanges();

            StringWriter sw = new StringWriter();
            ds.WriteXmlSchema(sw);

            string result = sw.ToString();

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