Ajax无法将表单id发送到MVC Controller

时间:2017-12-19 09:53:00

标签: javascript jquery ajax asp.net-mvc parameter-passing

我对ajax有点小问题。所以首先我要告诉你我的行为。

形式:

<form id="QuestionForm">
    @Html.TextBoxFor(model => model.Body, new { @class = "form-control", @placeholder = "Body" }) 
    @Html.TextBoxFor(model => model.Text, new { @class = "form-control", @placeholder = "Text" })
</form>

这是我的脚本和ajax代码:

$("#btnSubmit").click(function () {
    var data = $('#QuestionForm').serialize();

    $.ajax({
        type: "POST",
        url: "/Survey/AddQuestion",
        data: {data, @Model.Survey.Id},
        success: function () {
            $("#AddQuestion").modal("hide");
            //alert("Survey Added");
            location.reload();
        }
    })

})

这是我的控制器动作:

public JsonResult AddQuestion(SurveyQuestion model, int id) 
{  
    SurveyQuestion question = new SurveyQuestion();
    question.Body = model.Body;
    question.CreatedOn = DateTime.Now;
    question.ModifiedOn = DateTime.Now;
    question.Priority = 0;
    question.SurveyId = id;
    question.Text = model.Text;
    question.Type = QuestionType.Text;

    _db.SurveyQuestions.Add(question);
    _db.SaveChanges();
    return Json(question, JsonRequestBehavior.AllowGet);
}

我没有填写代码的每一部分,其中一部分是硬编码的,因为我将在以后执行操作。但问题在于发送两件事。 如果我没有从控制器发送Id并删除Id,它会很好地发送序列化模型,但是如果我发送它们两者,它会得到Id,但它并没有将模型发送给他( text和body为null)。我该如何解决?

4 个答案:

答案 0 :(得分:1)

你可以这样做:

$("#btnSubmit").click(function() {

    $.ajax({
        type: "POST",
        url: "/Survey/AddQuestion",
        // Add id like query string parameter like below
        data: $('#QuestionForm').serialize() + '&id=' + @Model.Survey.Id,
        success: function() {
            $("#AddQuestion").modal("hide");
            //alert("Survey Added");
            location.reload();
        }
    })
})

答案 1 :(得分:1)

将id作为查询字符串参数传递

$("#btnSubmit").click(function () {
  var data = $('#QuestionForm').serialize();

  $.ajax({
    type: "POST",
    url: "/Survey/AddQuestion?id=" + '@Model.Survey.Id',
    data: {data, @Model.Survey.Id},
    success: function () {
        $("#AddQuestion").modal("hide");
        //alert("Survey Added");
        location.reload();
    }
})
})

在控制器中,在参数

之前使用 FromUri 属性
public JsonResult AddQuestion(SurveyQuestion model,[FromUri]int id)
{

    SurveyQuestion question = new SurveyQuestion();
    question.Body = model.Body;
    question.CreatedOn = DateTime.Now;
    question.ModifiedOn = DateTime.Now;
    question.Priority = 0;
    question.SurveyId = id;
    question.Text = model.Text;
    question.Type = QuestionType.Text;

    _db.SurveyQuestions.Add(question);
    _db.SaveChanges();
    return Json(question, JsonRequestBehavior.AllowGet);
}

答案 2 :(得分:0)

您可以将ID放入网址

$("#btnSubmit").click(function () {
  var data = $('#QuestionForm').serialize();

  $.ajax({
    type: "POST",
    url: "/Survey/AddQuestion?id=@Model.Survey.Id",
    data: {data},
    success: function () {
        $("#AddQuestion").modal("hide");
        //alert("Survey Added");
        location.reload();
    }
  })

})

答案 3 :(得分:0)

试试这个,在post中传递多个参数,或者你可以使用querystring传递,如其他答案所示

$("#btnSubmit").click(function () {
    var data = $('#QuestionForm').serialize();

    $.ajax({
        type: "POST",
        url: "/Survey/AddQuestion",
        data: {model : data, id: @Model.Survey.Id},
        success: function () {
            $("#AddQuestion").modal("hide");
            //alert("Survey Added");
            location.reload();
        }
    })

})

控制器

public ActionResult ActionName(SurveyQuestion model, int id)
{
   Your Code .......
}