自定义datatable

  //DataTable dt = new DataTable();
           //dt.Columns.Add("ID", Type.GetType("System.Int32"));
           //dt.Columns[0].AutoIncrement = true;
           //dt.Columns[0].AutoIncrementSeed = 1;
           //dt.Columns[0].AutoIncrementStep = 1;

           //dt.Columns.Add("Product", Type.GetType("System.String"));
           //dt.Columns.Add("Version", Type.GetType("System.String"));
           //dt.Columns.Add("Description", Type.GetType("System.String"));

           //dt.Rows.Add(new object[] { null, "a", "1", "c" });
           //dt.Rows.Add(new object[] { null, "a", "2", "c" });
           //dt.Rows.Add(new object[] { null, "b", "3", "c" });
           //dt.Rows.Add(new object[] { null, "b", "4", "c" });
           //dt.Rows.Add(new object[] { null, "a", "5", "c" });