Question

以下是我的代码，当我将数据传递到控制器时，所有数据都正确传递，但数组传递为空。请帮忙。这是我的模型类，在模型中，我有详细信息类列表以访问详细信息记录。在MVC中，如果所有有效的代码都传递给控制器，则此处的JavaScript代码会产生错误请尽快提供帮助

型号代码为公共类ClsFoodItem { public int ItemSysSeq {获取;组; }

    [Display(Name = "Item Code")]
    //[StringLength(30, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 3)]
    public string ItemCode { get; set; }


    [Display(Name = "Item Name")]
    //[StringLength(30, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 5)]
    public string ItemName { get; set; }

     [Display(Name = "Description")]
    //[StringLength(50, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 5)]
    public string ItemDescr { get; set; }


    //[StringLength(15, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 11)]
    public string PurchaseUnit { get; set; }


    //[StringLength(15, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 8)]
    public int UnitPrice { get; set; }

    //[StringLength(15, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 8)]
    public int BoxPrice { get; set; }

    //[StringLength(15, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 11)]
    public int UnitQtyinBox { get; set; }

    public string   ItemPicture { get; set; }

     public string Remarks { get; set; }

  public List<clsFoodItemsInStock> ItemInStock { get; set; }

}

// javascript代码

if（isAllValid）{

                var data = {
                    ItemCode :   $('#ItemCode').val().trim(),
                    itemname:   $('#ItemName').val().trim(),
                    ItemDescr: $('#Itemdesp').val().trim(),
                    purchaseUnit: $('#purchaseUnit').val().trim(),
                    UnitPrice:  $('#UnitPrice').val().trim(),
                    unitQtyInBox:  $('#unitQtyInBox').val().trim(),
                    boxprice: $('#boxprice').val().trim(),
                    remarks: $('#remarks').val().trim(),
                    //mageData: $('#File1').val().trim(),
                     ItemInStock: stockvalues
                }
                    $(this).val('Please wait...');


                    $.ajax({

                        type: "POST",


                    url: '/FoodItem/Create/',



                   data: JSON.stringify(data),

                    dataType: 'JSON',

                    contentType: "application/json",

                    success: function (data) {
                        alert("array: " + stockvalues.join(', '));
                        //check is successfully save to database

                        if (data.status == true) {

                            //will send status from server side

                            alert('Successfully done.');

                            //clear form

                            stockvalues = [];

                            $('#ItemCode,#ItemName,#Itemdesp,#purchaseUnit,#UnitPrice,#unitQtyInBox,#boxprice,#remarks,#File1').val('');

                            $('#stockdetailitems').empty();

                        }

                        else {

                            alert('Error');

                        }


                        $('#submit').text('Save');
                    },

//控制器代码

数据库中的路径

            //}
            using (SqlConnection sqlCon = new SqlConnection(obj_conn.Conn()))
            {

                sqlCon.Open();
                string query = "INSERT INTO [dbo].[FoodItem] (ItemCode,ItemName,ItemDescr,PurchaseUnit,UnitPrice,BoxPrice,UnitQtyinBox,ItemPicture,Remarks) ";
                query = query + "OUTPUT inserted .itemSysSeq Values(@ItemCode,@ItemName,@ItemDescr,@PurchaseUnit,@UnitPrice,@BoxPrice,@UnitQtyinBox,@ItemPicture,@Remarks)";
                SqlCommand sqlCmd = new SqlCommand(query, sqlCon);
                sqlCmd.Parameters.AddWithValue("@ItemCode", clsitem.ItemCode);
                sqlCmd.Parameters.AddWithValue("@ItemName", clsitem.ItemName);
                sqlCmd.Parameters.AddWithValue("@ItemDescr", (object)clsitem.ItemDescr ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@PurchaseUnit", (object)clsitem.PurchaseUnit ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@UnitPrice", (object)clsitem.UnitPrice ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@BoxPrice", (object)clsitem.BoxPrice ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@UnitQtyinBox", (object)clsitem.UnitQtyinBox ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@ItemPicture", (object)clsitem.ItemPicture ?? DBNull.Value);
                sqlCmd.Parameters.AddWithValue("@Remarks", (object)clsitem.Remarks ?? DBNull.Value);

                clsitem.ItemSysSeq = (int)sqlCmd.ExecuteScalar();

                foreach (var i in clsitem.ItemInStock)
                {

                    string query1 = "INSERT INTO [dbo].[FoodItemInStock] (ItemSysSeq,StockSysSeq,OpeningBalance,QtyInHand) ";
                    query1 = query1 + "Values(@ItemSysSeq,@StockSysSeq,@OpeningBalance,@QtyInHand)";
                    SqlCommand sqlCmd1 = new SqlCommand(query1, sqlCon);
                    sqlCmd1.Parameters.AddWithValue("@ItemSysSeq", clsitem.ItemSysSeq);
                    sqlCmd1.Parameters.AddWithValue("@StockSysSeq", 1);
                    sqlCmd1.Parameters.AddWithValue("@OpeningBalance", 200);
                    sqlCmd1.Parameters.AddWithValue("@QtyInHand", 55);

                    sqlCmd1.ExecuteNonQuery();
                }



                status = true;

            }

        }

        else
        {

            status = false;


        }

        return new JsonResult { Data = new { status = status } };
    }

Answer 1

https://dotnetfiddle.net/EukRIN

这是您的观点

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index5</title>
    <script src="~/Scripts/jquery-3.3.1.min.js"></script>
    <script>
        $(function () {
            $("#theButton").click(function () {
                var stockValues = $(".stockvalue");
                //https://stackoverflow.com/questions/5489461/pass-array-to-mvc-action-via-ajax
                var theArray = [];
                $.each(stockValues, function (index, aValue) {
                    theArray.push(aValue.value);
                })
                $.ajax({
                    type: "POST",
                    url: '/Home/MyAjaxCallMethodPassingArray/',
                    traditional: true,
                    data: { 'arrayOfValues': theArray }
                });
            })
        })
    </script>
</head>
<body>
    <div>
        <input type="text" class="stockvalue" />
        <input type="text" class="stockvalue" />
        <input type="text" class="stockvalue" />
        <input type="text" class="stockvalue" />
        <input type="button" value="Go" id="theButton" />
    </div>
</body>
</html>

这是你的行动

    public string MyAjaxCallMethodPassingArray(String[] arrayOfValues)
    {
        //put a breakpoint here to see the arrayOfValues
        return "done";
    }

Ajax调用将空数组传递给控制器

1 个答案: