protected void btnSubmit_Click(object sender, EventArgs e) { try { string strErrorMsg = ValidateInput(); if (!string.IsNullOrEmpty(strErrorMsg.ToString())) { plMessage.Visible = true; displayCustomMessage(FormatErrorMessage(strErrorMsg.ToString()), lblMessage, SystemMessageType.Error); return; } m_Header.AcknowledgeStatus = POAckStatus.Acknowledged; foreach (GridViewRow rowItem in gvItem.Rows) { Label lblItemNo = (Label)rowItem.FindControl("lblItemNo"); GridView gvSchedule = (GridView)rowItem.FindControl("gvSchedule"); foreach (GridViewRow rowSchedule in gvSchedule.Rows) { Label lblPurchaseOrderScheduleSequence = (Label)rowSchedule.FindControl("lblPurchaseOrderScheduleSequence"); UserControls_DatePicker dtpAck = (UserControls_DatePicker)rowSchedule.FindControl("dtpAck"); foreach (PurchaseOrderItemSchedule schedule in m_Schedules) { if (string.Compare(lblItemNo.Text, schedule.PurchaseOrderItemSequence, true) == 0 && string.Compare(lblPurchaseOrderScheduleSequence.Text, schedule.PurchaseOrderScheduleSequence, true) == 0) { schedule.AcknowledgementDate = GetStoredDateValue(dtpAck.SelectedDate); } } } } PurchaseOrderController.AcknowledgePurchaseOrder(m_Header, m_Schedules); btnSubmit.Enabled = false; plMessage.Visible = true; string sMessage = "Purchase Order has been acknowledged successfully."; displayCustomMessage(sMessage, lblMessage, SystemMessageType.Information); } catch (Exception ex) { ExceptionLog(ex); plMessage.Visible = true; string sMessage = ex.Message; displayCustomMessage(sMessage, lblMessage, SystemMessageType.Error); } }