System.Data.Tests.DataSetTest2.ReadXml_Diffgram_MissingSchema C# (CSharp) Метод

        public void ReadXml_Diffgram_MissingSchema()
        {
            DataSet ds = new DataSet();
            ds.Tables.Add("table");
            ds.Tables[0].Columns.Add("col1");
            ds.Tables[0].Columns.Add("col2");

            ds.Tables[0].Rows.Add(new object[] { "a", "b" });
            ds.Tables[0].Rows.Add(new object[] { "a", "b" });

            MemoryStream ms = new MemoryStream();
            ds.WriteXml(ms, XmlWriteMode.DiffGram);

            DataSet ds1 = new DataSet();
            ds1.Tables.Add("table");
            ds1.Tables[0].Columns.Add("col1");

            // When table schema is missing, it shud load up the data
            // for the existing schema
            ds1.ReadXml(new MemoryStream(ms.GetBuffer()), XmlReadMode.DiffGram);

            Assert.Equal(2, ds1.Tables[0].Rows.Count);
            Assert.Equal(1, ds1.Tables[0].Columns.Count);
            Assert.Equal("a", ds1.Tables[0].Rows[0][0]);
            Assert.Equal("a", ds1.Tables[0].Rows[1][0]);
        }