Question

我正在尝试使用JQuery将单个对象数据发布到MVC控制器，下面是我的代码。

 //declare of type Object of GroupData
    var GroupData = {};
    //pass each data into the object 
    GroupData.groupName = $('#groupName').val(); 
    GroupData.narration = $('#narration').val();
    GroupData.investmentCode = $('#investmentCode').val();
    GroupData.isNew = isNewItem;
    //send to server
        $.ajax({
            url: "/Admin/SaveContributionInvestGroup",
            type: "POST",
            contentType: "application/json;charset=utf-8",
            dataType: "json", 
            data: JSON.stringify({ GroupData: JSON.stringify(GroupData) }),

            success: function (res) {
                alertSuccess("Success", res.Message);

                //hide modal
                $('#product-options').modal('hide');

                hide_waiting();
            },
            error: function (res) {
                alertError("Error", res.Message);
            }
        });

下面是我的控制器。

[HttpPost]
    public JsonResult SaveContributionInvestGroup(ContributionInvestmentGroup GroupData)
    {
        ClsResponse response = new ClsResponse();
        ClsContributionInvestmentGroup clsClsContributionInvestmentGroup = new ClsContributionInvestmentGroup();

        var userID = (int)Session["userID"];
        var sessionID = (Session["sessionID"]).ToString();

        if (contributionGroupData != null)
        {
            //get the data from the cient that was passed
            ContributionInvestmentGroup objData = new ContributionInvestmentGroup()
            {
                contributionInvestmentGroupID = 0,
                groupName = GroupData.groupName,
                narration = GroupData.narration,
                investmentCode = GroupData.investmentCode,
                isNew = GroupData.isNew
            };

            response = clsClsContributionInvestmentGroup.initiateNewContributionInvestmentGroup(sessionID, objData);
        }
        else
        {
            response.IsException = true;
            response.IsSucess = false;
            response.Message = "A system exception occurred kindly contact your Administrator.";
        }


        return Json(new
        {
            response.IsSucess,
            response.Message
        });
    }

问题是，数据未发布到控制器，控制器接收到空对象。谢谢您的帮助，谢谢。

Answer 1

尝试这样：

//send to server
        $.ajax({
             type: "POST",
                url: "/Admin/SaveContributionInvestGroup",
                dataType: "json",
                data:  GroupData,
            success: function (res) {
                alertSuccess("Success", res.Message);

                //hide modal
                $('#product-options').modal('hide');

                hide_waiting();
            },
            error: function (res) {
                alertError("Error", res.Message);
            }
        });

Answer 2

在您的控制器中，您没有custom binding来将JSON绑定到模型，这就是为什么参数中为null的原因。而不是只是将其发布为查询，请尝试像这样简单地更改ajax选项：

{
        ...
        contentType: "application/x-www-form-urlencoded", //default: 
        ..., 
        data: $.param(GroupData),

        ...
}

也许属性名称区分大小写，所以您需要更改javascript模型的名称

使用jQuery Ajax将单个对象传递到MVC控制器方法

2 个答案: