private void button1_Click(object sender, EventArgs e) { if (DGVShowPatient.RowCount > 0) { PatientShowViewModel medhis = getViewModelfromDataRow(); medhis.Id = DGVShowPatient.CurrentRow.Cells[0].Value.ToString(); Frm_MedicHistory FrmMedicHistory = new Frm_MedicHistory(); FrmMedicHistory.patmed.Id = medhis.Id; FrmMedicHistory.docuv.Id = docvm.Id; FrmMedicHistory.frmfather = this; FrmMedicHistory.ShowDialog(); } }