private void DeleteBarItem_ItemClick(object sender, ItemClickEventArgs e) { if (vistitDoctor != null) { DialogResult dialogResult = XtraMessageBox.Show("You really want to delete the selected element?", "Sure", MessageBoxButtons.YesNo); if (dialogResult == DialogResult.Yes) { if (!_DB.DeleteVisitDoctor(vistitDoctor)) { XtraMessageBox.Show("Element is not deleted!"); } _vistiDoctor = _DB.GetVistiDoctorForPatient(patient); VisitDoctorGridControl.DataSource = _vistiDoctor; CleatData(); } } else { XtraMessageBox.Show("Element is not selected!"); } }