System.Data.Tests.DataTableTest.Serialize C# (CSharp) Method

        public void Serialize()
        {
            MemoryStream fs = new MemoryStream();

            // Construct a BinaryFormatter and use it 
            // to serialize the data to the stream.
            BinaryFormatter formatter = new BinaryFormatter();

            // Create an array with multiple elements refering to 
            // the one Singleton object.
            DataTable dt = new DataTable();

            dt.Columns.Add(new DataColumn("Id", typeof(string)));
            dt.Columns.Add(new DataColumn("ContactName", typeof(string)));
            dt.Columns.Add(new DataColumn("ContactTitle", typeof(string)));
            dt.Columns.Add(new DataColumn("ContactAreaCode", typeof(string)));
            dt.Columns.Add(new DataColumn("ContactPhone", typeof(string)));

            DataRow loRowToAdd;
            loRowToAdd = dt.NewRow();
            loRowToAdd[0] = "a";
            loRowToAdd[1] = "b";
            loRowToAdd[2] = "c";
            loRowToAdd[3] = "d";
            loRowToAdd[4] = "e";
            dt.Rows.Add(loRowToAdd);

            DataTable[] dtarr = new DataTable[] { dt };

            // Serialize the array elements.
            formatter.Serialize(fs, dtarr);

            // Deserialize the array elements.
            fs.Position = 0;
            DataTable[] a2 = (DataTable[])formatter.Deserialize(fs);

            var ds = new DataSet();
            ds.Tables.Add(a2[0]);

            StringWriter sw = new StringWriter();
            ds.WriteXml(sw);
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(sw.ToString());
            Assert.Equal(5, doc.DocumentElement.FirstChild.ChildNodes.Count);
        }