public static JsonResults AddEditItemRate(string StartDate, string ItemPrice, int ItemRateID, int itemMasterID, string TotalGST,
                                                  string SGSTPer, string SGST, string CGSTPer, string CGST, string BillAmt)
        {
            JsonResults invoiceList = new JsonResults();
            LoginUser   currentUser;

            try
            {
                if (!GetUserSession(out currentUser))
                {
                    invoiceList.ErrorCode    = -1001;
                    invoiceList.ErrorMessage = "";
                }

                AdminManagerSP customerObj = new AdminManagerSP();
                if (customerObj.AddEditItemRate(currentUser.CompanyID, currentUser.UserId, ItemRateID, itemMasterID, ItemPrice, StartDate, string.IsNullOrEmpty(TotalGST) ? 0 : Convert.ToSingle(TotalGST),
                                                string.IsNullOrEmpty(SGSTPer) ? 0 : Convert.ToSingle(SGSTPer), string.IsNullOrEmpty(SGST) ? 0 : Convert.ToSingle(SGST), string.IsNullOrEmpty(CGSTPer) ? 0 : Convert.ToSingle(CGSTPer),
                                                string.IsNullOrEmpty(CGST) ? 0 : Convert.ToSingle(CGST), string.IsNullOrEmpty(BillAmt) ? 0 : Convert.ToSingle(BillAmt)))
                {
                    invoiceList.ErrorCode    = 0;
                    invoiceList.ErrorMessage = "";
                }
                else
                {
                    invoiceList.ErrorCode    = customerObj.GetLastErrorCode();
                    invoiceList.ErrorMessage = customerObj.GetLastError();
                }
            }
            catch (Exception ex)
            {
                Utils.Write(ex);
            }

            return(invoiceList);
        }