private void repositoryItemLookUpEditTeacher_EditValueChanged(object sender, EventArgs e) { DevExpress.XtraEditors.LookUpEdit le = sender as DevExpress.XtraEditors.LookUpEdit; if (le == null) { return; } DataRow r = gridView.GetFocusedDataRow(); if (r == null) { return; } DataRowView rv = (DataRowView)le.GetSelectedDataRow(); if (rv == null) { return; } r["TeacherId"] = rv["Id"]; r["TeacherName"] = rv["Name"]; }