Question

控制器：

{
    private static string selection = String.Empty;
    dynamic mymodel = new ExpandoObject();
    public ActionResult Post(string Name)
    {
        selection = Name;
        return RedirectToAction("Index");
    }
    public ActionResult Index()
    {
        SegmentRepository segment = new SegmentRepository();
        mymodel.listofSegments = segment.GetSegmentation();
        DynamicRepository dynamic = new DynamicRepository();
        mymodel.listofDynamic = dynamic.GetDynamicContent(selection); //After selecting the segmentation in the view it returns the required dynamic content in mymodel.listofDynamic  but does not display it in the view.
        return View(mymodel);
    }
}

在视图中选择细分后，它会在mymodel.listofDynamic中返回所需的动态内容，但不会在视图中显示。

查看：

<script>
    function seg() {
        var employment = document.getElementById("Employment").value;
        $.ajax({
            type: "POST", //HTTP POST Method
            url: '@Url.Action("Post","Home")', // Controller/View
            data: {
                //Passing data
                Name: employment //Reading text box values using Jquery
            }
        })
    }
</script>

<tr>
    <td height="100">
        <label>220</label>
    </td>
    <td>
        <select id="Employment">
            <option>---Select---</option>
            @foreach (var item in Model.listofSegments)
            {      
                <option name="selectedSegment" value="@item">@item</option>
            }
        </select>
        <input type="submit" value="Send" name="submit" onclick="seg()">
    </td>
    <td>
        <select name="Dynamic">
            <option>---Select---</option>
            @foreach (var item in Model.listofDynamic)
            {
                <option name="selectedDynamic" value="@item">@item</option>
            }// I need the data to get listed here
        </select>
        <input type="submit" value="Send" name="Submit1">
    </td>
</tr>

我需要public ActionResult Index()方法再次运行，以便listofDynamic中的数据打印在视图中。我怎样才能做到这一点？

Answer 1

在Ajax的数据部分中，使用以下内容：

data: { "name": employment }, //Pass value of employment variable as the name parameter
success: function(data) {
     alert(data); //In the success function, pass the data to be notified in the view
}

以上内容将使用Ajax将数据从控制器返回到视图。

同时，使用Json方法使其正常工作或ActionResult也可以：

public JsonResult GetResults(string name) //Here is the name parameter
{
   MainEntities db = new MainEntities(); //Db context

   var con = (from c in db.TableName
              where c.ColumnName == name //Pass the name parameter in the query
              select c).ToList();

   return Json(con); //Finally returns the result in Json
}

Answer 2

如果您想通过Ajax获取值，您会忘记成功和错误部分。查看部分：

$.ajax({
            type: "POST", //HTTP POST Method
            url: '@Url.Action("Post","Home")', // Controller/View
            data: {
                //Passing data
                Name: employment //Reading text box values using Jquery
            },
            success:function(result){alert(result);},
            error:function(error){alert(error.responseText);}
        })

像AT-2017这样的控制器端写了JsonResult，或者你可以返回部分视图/任何其他类型。

从控制器获取数据后，如何将数据发送回视图

2 个答案: