get values of non-display columns of actual data row

Question

Hi, I am beginner in C# and I can't find solution of this: I have data table, which is bind to ComboBox DataSet ds; . . cmbXXX.DataSource = ds.Tables["TableName"]; cmbXXX.DisplayMember = "Column1"; I'd like to get the value of other column (for example Column2) after the selected item in the ComboBox is changed. I can find it only this way ... foreach (DataRow dr in ds.Tables["..."].Rows) { if (dr["Column1"].ToString() == cmbXXX.Text) // the code for found row // use row value of dr["Column2_name"] } is ther more effective way ? Thanx