Question

我有父视图和部分视图，但是当它尝试从父视图加载局部视图时会出现以下错误

传递到字典中的模型项的类型为'System.Data.Objects.DataClasses.EntityCollection`1 [RolMVC3.Models.OFFICE]'，但此字典需要“RolMVC3.Models.OFFICE”类型的模型项

局部视图：

@model RolMVC3.Models.OFFICE
        @Html.HiddenFor(model => model.IdOffice)
        @Html.HiddenFor(model => model.IdSCampus)
        <div class="editor-label">
            @Html.LabelFor(model => model.AddressOffice)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.AddressOffice)
            @Html.ValidationMessageFor(model => model.AddressOffice)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.PhoneOffice)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model..PhoneOffice)
            @Html.ValidationMessageFor(model => model..PhoneOffice)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.EmailOffice)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.EmailOffice)
            @Html.ValidationMessageFor(model => EmailOffice)
        </div>

父视图：

@model RolMVC3.Models.CAMPUS_UNIVERSITY

@{
    ViewBag.Title = "Edit"; 
}

<h2>Edit</h2>

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

   <h2> @ViewBag.University.Name - @ViewBag.Campus.NameCity </h2>

    <fieldset>
        <legend>MODIFY OFFICE</legend>

        @Html.HiddenFor(model => model.IdUniversidty)

        @Html.HiddenFor(model => model.IdCityCampus)

        @Html.HiddenFor(model => model.IdCampus)

        <div class="editor-label">
            @Html.LabelFor(model => model.AddressCampus)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.AddressCampus)
            @Html.ValidationMessageFor(model => model.AddressCampus)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.PhoneCampusSede)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.PhoneCampus)
            @Html.ValidationMessageFor(model => model.PhoneCampus)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.EamailCampus)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.EamailCampus)
            @Html.ValidationMessageFor(model => model.EamailCampus)
        </div>

        <fieldset>
        <legend>DATA</legend>
       @Html.Partial("_Office", Model.OFFICE)
        </fieldset>
          <p>
            <input type="submit" value="Save" />
        </p>
    </fieldset>
}

控制器：

 public ActionResult Edit()
        {
            decimal id;
            id = (decimal)Session["Offi"];

            ViewBag.University = (from c in db.OFFICE
                                   join s in db.CAMPUS_UNIVERSITY on c.IdCampus equals s.IdCampus
                                   join u in db.UNIVERSIDTY on s.IdUniversity equals u.IdUniversity
                                   where c.IdOffice == id
                                   select u).Single();

            ViewBag.Campus = (from c in db.OFFICE
                            join s in db.CAMPUS_UNIVERSITY on c.IdCampus equals s.IdCampus
                            join ci in db.CIUDAD on s.IdCaityCampus equals ci.IdCity
                            where c.IdOffice == id
                            select ci).Single();

            OFFICE office = db.OFFICE.Single(c => c.IdOffice == id);

            CAMPUS_UNIVERSITY campus_university = db.CAMPUS_UNIVERSITY.Single(s => s.IdSede == office.IdCampus);


            return View(campus_university);
        }

祝福

Answer 1

您能展示RolMVC3.Models.OFFICE和CAMPUS_UNIVERSITY对象的样子吗？我猜你的CAMPUS_UNIVERSITY模型中有一些奇怪的东西。 .OFFICE字段是否紧密转换为OFFICE对象还是可枚举的？你可以通过在视图中传入Model.OFFICE [0]来快速测试它。

Answer 2

看起来你传递的是一种不同于预期的类型。从您的角度来看，我可以看出该视图期待的是“OFFICE”类型的对象。您确定传递给Partial View调用的模式是否属于同一类型？或者你是否通过了一份办公室名单？

Answer 3

你的控制器有代码

OFFICE office = db.OFFICE.Single(c => c.IdOffice == id); 
CAMPUS_UNIVERSITY campus_university = db.CAMPUS_UNIVERSITY
                                        .Single(s => s.IdSede == office.IdCampus);

但您的视图仅使用模型CAMPUS_UNIVERSITY。我假设CAMPUS_UNIVERSITY.Office属性是EntityCollection<OFFICE>，它与视图对Office的要求不匹配。

一种解决方案是显示所有办公室：

@foreach(var office in Model.OFFICE)
{
   @Html.Partial("_Office", office)   
}

或另一个是实际使用您在控制器中创建的Office

控制器（添加）

ViewBag.Office = db.OFFICE.Single(c => c.IdOffice == id);

查看（更改）

@Html.Partial("_Office", ViewBag.Office)

不要从父视图中进行局部视图加载

3 个答案: