Question

我有以下ViewModel和相应的两个模型。

我在视图上显示来自此ViewModel的数据，但是当我发布要更新的数据时，会发生以下错误

传递到字典中的模型项的类型是＆＃39; WebMSM.Models.ComplainDetailsVm＆＃39;，但是这个字典需要一个类型为＆＃39; WebMSM.Models.REPAIRING＆＃39;的模型项。

def readData():
    myList =[]
    myFile = open("football.txt", "r")
    for lines in myFile:
        league = lines.split()
        myList.append(league)
    return myList

REPAIRING.cs

public partial class ComplainDetailsVm
{

    public virtual REPAIRING REPAIRINGs { get; set; }
    public virtual COMPLAIN COMPLAINs { get; set; }
}

COMPLAIN.cs

public partial class REPAIRING
{

    [Key]
    [DisplayName("JOBSHEET NO")]
    public int JOBSHEET_NO { get; set; }

    [DisplayName("IN TIME")]
    public Nullable<System.DateTime> IN_TIMESTAMP { get; set; }

    [DisplayName("CREATE TIME")]
    public Nullable<System.DateTime> CREATE_TIMESTAMP { get; set; }

    [DisplayName("LAST EDIT TIME")]
    public Nullable<System.DateTime> LAST_EDIT_TIMESTAMP { get; set; }
}

控制器行动

public partial class COMPLAIN
{

    [Key]
    [DisplayName("JOBSHEET NO")]
    public int JOBSHEET_NO { get; set; }

    [Required]
    [DisplayName("COMPANY NAME")]
    public string COMPANY_NAME { get; set; }

    [Required]
    [DisplayName("MODEL NAME")]
    public string MODEL_NAME { get; set; }
}

更新

查看

    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(int? id,ComplainDetailsVm model)
    {
        if (ModelState.IsValid)
        {
            var r = model.REPAIRINGs;
            var c = model.COMPLAINs;
            db.Entry(r).State = EntityState.Modified;
            db.SaveChanges();
        }    
        return View(model);
    }

更新增加获取方法

@model WebMSM.Models.ComplainDetailsVm


@{
ViewBag.Title = "EditRepairingComplain";
}

<h2>Edit</h2>


@using (Html.BeginForm())
{
@Html.AntiForgeryToken()

<div class="form-horizontal">

    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    @Html.HiddenFor(model => model.REPAIRINGs.JOBSHEET_NO)
    @Html.HiddenFor(model => model.COMPLAINs.JOBSHEET_NO)
    <div class="form-group">
        @Html.LabelFor(model => model.COMPLAINs.COMPANY_NAME, 

htmlAttributes: new { @class = "control-label col-md-4" })
            <div class="col-md-6">
                @Html.TextBoxFor(model => model.COMPLAINs.COMPANY_NAME, new { @class = "form-control", @readonly = "readonly" })
                @Html.ValidationMessageFor(model => model.COMPLAINs.COMPANY_NAME, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.COMPLAINs.MODEL_NAME, htmlAttributes: new { @class = "control-label col-md-4" })
            <div class="col-md-6">
                @Html.TextBoxFor(model => model.COMPLAINs.MODEL_NAME, new { @class = "form-control", @readonly = "readonly" })
                @Html.ValidationMessageFor(model => model.COMPLAINs.MODEL_NAME, "", new { @class = "text-danger" })
            </div>
        </div>


        <div class="form-group">
            @Html.LabelFor(model => model.REPAIRINGs.IN_TIMESTAMP, htmlAttributes: new { @class = "control-label col-md-4" })
            <div class="col-md-6">
                @Html.EditorFor(model => model.REPAIRINGs.IN_TIMESTAMP, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.REPAIRINGs.IN_TIMESTAMP, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.REPAIRINGs.CREATE_TIMESTAMP, htmlAttributes: new { @class = "control-label col-md-4" })
            <div class="col-md-6">
                @Html.EditorFor(model => model.REPAIRINGs.CREATE_TIMESTAMP, new { htmlAttributes = new { @class = "form-control" } })
                @Html.ValidationMessageFor(model => model.REPAIRINGs.CREATE_TIMESTAMP, "", new { @class = "text-danger" })
            </div>
        </div>

<div class="form-group">
                @Html.LabelFor(model => model.REPAIRINGs.LAST_EDIT_TIMESTAMP, htmlAttributes: new { @class = "control-label col-md-4" })
                <div class="col-md-6">
                    @Html.EditorFor(model => model.REPAIRINGs.LAST_EDIT_TIMESTAMP, new { htmlAttributes = new { @class = "form-control" } })
                    @Html.ValidationMessageFor(model => model.REPAIRINGs.LAST_EDIT_TIMESTAMP, "", new { @class = "text-danger" })
                </div>
            </div>







        <div class="form-group">
            <div class="col-md-offset-5 col-md-6">
                <input type="submit" value="Save" class="btn btn-default" />
            </div>
        </div>
    </div>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

感谢。

Answer 1

您可以让View以两种方式识别您的ViewModel：您可以为您提供MVC框架，或者您可以使用strongly typed views

在您的情况下，您的视图是强类型的，但引用了错误的对象类。如果您从其他文件复制视图，则会发生这种情况。您应该在cshtml文件中看到以下行：

@model WebMSM.Models.REPAIRING

将其替换为：

@model WebMSM.Models.ComplainDetailsVm

您不应再收到错误。

编辑：

值得一提的是，这些行应位于操作方法返回的cshtml文件之上。

ViewModel更新失败，错误

1 个答案: