ds.Tables[0].Columns[0].ColumnName = "ColumnName";

                const string stringName = "keyword1, keyword2, keyword3";
                string[] arrayName = stringName.Split(',');

                var ds = new DataSet();
                var dt = new DataTable("Table_Name");
                ds.Tables.Add(dt);

                var dc = new DataColumn("Column_Name");
                dt.Columns.Add(dc);

                for (var i = 0; i <= arrayName.Length - 1; i++)
                {
                    var dr = dt.NewRow();
                    dr["Column_Name"] = keyw[i];
                    dt.Rows.Add(dr);
                }

                controlName.DataSource = ds;
                controlName.DataBind();