手建DataTable 表格

 DataTable dt = new DataTable();

        DataColumn dc1 = new DataColumn();
        dc1.ColumnName = "列名1";

        DataColumn dc2 = new DataColumn();
        dc2.ColumnName = "列名2";

        dt.Columns.Add(dc1);
        dt.Columns.Add(dc2);

        DataRow dr1 = dt.NewRow();
        dr1["列名2"] = "行值1";
        dr1["列名1"] = "行值2";

        dt.Rows.Add(dr1);