if add row to DataTable
DataTable
DataRow row = datatable1.NewRow(); row[\"column2\"]=\"column2\"; row[\"column6\"]=\"column6\"; datatable1.Rows.Add(row);
Like this:
var index = dgv.Rows.Add(); dgv.Rows[index].Cells["Column1"].Value = "Column1"; dgv.Rows[index].Cells["Column2"].Value = 5.6; //....