private void OnAddClick(object sender, EventArgs e)
        {
            PatientBill obj = new PatientBill();

            PatientMedicineSaleForm.ShowForm(obj);
            this.LoadListData(obj);
        }
        private void OnOpenClick(object sender, EventArgs e)
        {
            PatientBill obj = this.GetSelected();

            if (obj != null)
            {
                obj.RefershData();
            }
            if (PatientMedicineSaleForm.ShowForm(obj))
            {
                this.LoadListData(obj);
            }
            this.LoadListData(obj);
        }
        private void OnpatientProcedureClick(object sender, EventArgs e)
        {
            PatientBill obj = this.GetSelected();

            PatientMedicineSaleForm.ShowForm(obj);
        }