Create a DataTable object Add Columns Using Add Method Create the object on Row DataTable objdt = new DataTable(); dtUnits.Columns.Add("ABCNo",typeof(string)); dtUnits.Columns.Add("UserName", typeof(string)); var row = objdt .NewRow(); row["ABCNo"] = ItemNO; row["UserName"] = Aranav; dtUnits.Rows.Add(row);