实际上我只是想通过使用jquery在html前端显示Max记录，而且我已经成功地将数据保存在模型中，这是我的jquery代码：
$("#btnSave").click(function () {
//var itemcode;
//var qty;
var books = $('#CbTable');
if (books.val() === '') {
alert("Please select an Table from the list and then proceed!");
$('#CbTable').focus();
return false;
}
else {
var a = [];
$('#tablefinaldata').find('tbody').find('tr').each(function () {
//InvNo: $('#TbInvNo').val();
Item_Code = $(this).find("#code").html();
SaleQty = $(this).find("#itemqty").html();
UnitRP = $(this).find("#itemprice").html();
a.push(Item_Code + "," + SaleQty + "," + UnitRP);
});
var allData = {
InvNo:$('#TbInvNo').val(),VAT: $('#TbGST').val(),GrossSale: $('#TbOrderTotal').val(),discount: $('#TbDiscount').val(),CusCash: $('#TbCash').val(),CusBal: $('#TbBalance').val(),CrBank: $('#CbBank').children("option:selected").val(),TblId: $('#CbTable').children("option:selected").val(),PymtType: $("input[name='RbCashStatus']:checked").val(),Dinetype: $("input[name='dinetype']:checked").val()
}
var posdata = { collection: allData,Data: a }
$.ajax({
url: '@Url.action("SaveData","POS")',type: 'POST',data: posdata,success: function (res) {
//$.get('/POS/SaveData',function (Data) {
// alert(Data)
});
}
});
}
});
这是我的控制器，在该方法中，方法返回InvNo，这正是我想要在前端使用并通过单击引用成功保存记录后在html输入中显示的内容，
public JsonResult SaveData(POSMater collection,string[] Data)
{
if (collection.InvNo.ToString() ==null)
{
TblPOSMaster master = new TblPOSMaster();
var maxValue = (from b in db.TblPOSMasters select b.InvNo).FirstOrDefault();
int MaxInvNo = maxValue + 1;
collection.InvNo = MaxInvNo;
master.InvNo = collection.InvNo;
master.CompId = 1;
master.ShopId = 1;
master.Saleperson = 1;
master.SaleType = "S";
master.CusId = 1;
master.saleDate = DateTime.Now;
master.PymtType = collection.PymtType;
master.CrBank = collection.CrBank;
master.CrCardNo = collection.CrCardNo;
master.GrossSale = collection.GrossSale;
master.discount = collection.discount;
master.TaxCodeId = 1;
master.VAT = collection.VAT;
master.NetSale = collection.NetSale;
master.CusCash = collection.CusCash;
master.CusCardAmt = collection.CusCardAmt;
master.CreditAmt = collection.CreditAmt;
master.CusBal = collection.CusBal;
master.ExchangeRate = 1;
master.PointEarned = collection.PointEarned;
master.PointEarnedValue = collection.PointEarnedValue;
master.PointRedeem = collection.PointRedeem;
master.InvNo_Sale_Return = collection.InvNo_Sale_Return;
master.AddBy = collection.AddBy;
master.AddDate = DateTime.Now;
master.UpdateBy = collection.UpdateBy;
master.UpdateDate = DateTime.Now;
master.Dinetype = collection.Dinetype;
master.TblId = collection.TblId;
master.Pax = collection.Pax;
master.CashStatus = "P";
master.OrderStatus = "B";
master.DisAprBy = collection.DisAprBy;
master.RefNo = collection.RefNo;
master.DealRmk = collection.DealRmk;
master.IsDeal = collection.IsDeal;
master.DlvrId = collection.DlvrId;
db.TblPOSMasters.Add(master);
db.SaveChanges();
for(int i=0;i<Data.Length;i++)
{
string rcvData = Data[i].ToString();
string[] arr = rcvData.Split(',');
TblPOSTran Trans = new TblPOSTran();
Trans.InvNo = collection.InvNo;
Trans.Item_Code = arr[0];
Trans.SaleQty = decimal.Parse(arr[1]);
Trans.UnitRP = decimal.Parse(arr[2]);
db.TblPOSTrans.Add(Trans);
db.SaveChanges();
return Json(collection.InvNo,JsonRequestBehavior.AllowGet);
//return Json(collection.InvNo);
}
}
else
{
}
return Json(collection.InvNo);
}