private void btnAdd_Click(object sender, EventArgs e) { DialogResult result = XtraMessageBox.Show("Do you to add this Readings ?", "Adding", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation); switch (result) { case DialogResult.Yes: VisitTiming_VitalSign visitTiming_VitalSign = PEMRBusinessLogic.CreateNew_VisitTiming_VitalSign(this, ApplicationStaticConfiguration.PEMRSavingMode); if (visitTiming_VitalSign != null) { if (PEMRBusinessLogic.ActivePEMRObject.List_VisitTiming_VitalSign == null) { PEMRBusinessLogic.ActivePEMRObject.List_VisitTiming_VitalSign = new List <VisitTiming_VitalSign>(); } PEMRBusinessLogic.ActivePEMRObject.List_VisitTiming_VitalSign.Add(visitTiming_VitalSign); } btnActiveVitalSign_Click(null, null); ClearControls(false); break; } }