脚手架生成的视图代码中的 HttpParseException

Question

我在 ASP.NET MVC5 中使用以下代码得到以下异常。我使用内置的脚手架来生成我的视图代码 (List)，但它不起作用。异常是关于一个 else 块，但它被抛出在我的 foreach 中的第二个元素，所以我完全不知道发生了什么（这里：@Html.DisplayFor(modelItem => item.Nem)）。

我读到了这个异常，但那些案例实际上是关于 if-else 的案例，所以我不能使用那个解决方案，而且仍然不知道我做错了什么。

System.Web.HttpParseException: 'The else block is missing a closing "}" character. Make sure you have a matching "}" character for all the "{" characters within this block, and that none of the "}" characters are being interpreted as markup.'

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Nev)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Nem)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.SzuletesiIdo)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.SzuletesiHely)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Taj)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Irsz)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Telepules)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Cim)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Email)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Mobil)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.OtthoniTel)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.AnyaNev)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.AnyaMobil)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.AnyaEmail)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.ApaNev)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.ApaMobil)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.ApaEmail)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.TanfolyamSorszam)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.TanfolyamOsztaly)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Csoport)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.BallagasEv)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.KimaradtDatum)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.PoloMeret)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Iskola)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.BkkIgazolvany)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.MavIgazolvany)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.MakIgazolvany)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.ProgramUtanHaza)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.EgeszsegugyiTudnivalo)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Egyeb)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id=item.GyerekId }) |
            @Html.ActionLink("Details", "Details", new { id=item.GyerekId }) |
            @Html.ActionLink("Delete", "Delete", new { id=item.GyerekId })
        </td>
    </tr>
}

编辑：item.Nem 是一个枚举类型（有两个可能的值）。我使用 DisplayTemplate 来显示枚举 (Views\Shared\DisplayTemplates\Enum.cshtml):

@model Enum

@if (EnumHelper.IsValidForEnumHelper(ViewData.ModelMetadata))
{
    // Display Enum using same names (from [Display] attributes) as in editors
    string displayName = null;
    foreach (SelectListItem item in EnumHelper.GetSelectList(ViewData.ModelMetadata, (Enum)Model))
    {
        if (item.Selected)
        {
            displayName = item.Text ?? item.Value;
        }
    }

    // Handle the unexpected case that nothing is selected
    if (String.IsNullOrEmpty(displayName))
    {
        if (Model == null)
        {
            displayName = String.Empty;
        }
        else
        {
            displayName = Model.ToString();
        }
    }

    @Html.DisplayTextFor(model => displayName)
}
else
{
    // This Enum type is not supported.  Fall back to the text.
    @Html.DisplayTextFor(model => model)

Answer 1

如果您查看第二个代码块 (Views\Shared\DisplayTemplates\Enum.cshtml):

You are missing the closing } at the end of your else statement

这正是异常告诉您的内容:)

脚手架生成的视图代码中的 HttpParseException

HttpParseException in scaffolding-generated view code

c#

asp.net-mvc

razor

asp.net-mvc-scaffolding