Question

我有一个非常奇怪的'错误'。我在我的观点中使用它：

<% foreach (var QualitativeGlobalFeatureValue in Model.PossibleValues)
                            { %>
                                <% using (Html.BeginForm("DeleteQualitativeGlobalFeatureValue", "Features", FormMethod.Post, new { @class = "deleteForm" }))
                                   { %>
                                        <%= QualitativeGlobalFeatureValue.Value %>
                                        <%= Html.ActionLink("Edit", "QualitativeGlobalFeatureValueForm", new { FeatureId = Model.Id, Id = QualitativeGlobalFeatureValue.Id })%>
                                        <%= Html.Hidden("QualitativeGlobalFeatureValueId", QualitativeGlobalFeatureValue.Id)%>
                                        <%= QualitativeGlobalFeatureValue.Id %>
                                        <%= Html.Hidden("FeatureId", Model.Id)%>
                                        <input type="submit" value="Delete" class="link_button" /> 
                                <% } %>
                        <% } %>

这会产生一系列表单，这些表单会发布到一个动作，然后重定向到一个动作，该动作又产生这个视图。

这是一些HTML：

<form action="/Features/DeleteQualitativeGlobalFeatureValue" class="deleteForm" method="post">b
                                        <a href="/Features/QualitativeGlobalFeatureValueForm?FeatureId=2103&amp;Id=3004">Edit</a>
                                        <input id="QualitativeGlobalFeatureValueId" name="QualitativeGlobalFeatureValueId" value="3004" type="hidden">
                                        3004
                                        <input id="FeatureId" name="FeatureId" value="2103" type="hidden">
                                        <input value="Delete" class="link_button" type="submit"> 
                                </form><form action="/Features/DeleteQualitativeGlobalFeatureValue" class="deleteForm" method="post">aa
                                        <a href="/Features/QualitativeGlobalFeatureValueForm?FeatureId=2103&amp;Id=9010">Edit</a>
                                        <input id="QualitativeGlobalFeatureValueId" name="QualitativeGlobalFeatureValueId" value="9010" type="hidden">
                                        9010
                                        <input id="FeatureId" name="FeatureId" value="2103" type="hidden">
                                        <input value="Delete" class="link_button" type="submit"> 
                                </form>

现在，如果我使用Id 9010删除该值，则生成的HTML如下所示：

<form action="/Features/DeleteQualitativeGlobalFeatureValue" class="deleteForm" method="post">b
                                        <a href="/Features/QualitativeGlobalFeatureValueForm?FeatureId=2103&amp;Id=3004">Edit</a>
                                        <input id="QualitativeGlobalFeatureValueId" name="QualitativeGlobalFeatureValueId" value="9010" type="hidden">
                                        3004
                                        <input id="FeatureId" name="FeatureId" value="2103" type="hidden">
                                        <input value="Delete" class="link_button" type="submit"> 
                                </form>

由于某些无法解释的原因，它包含value =“9010”而不是value =“3004”，尽管它使用代码QualitativeGlobalFeatureValue.Id

这没有意义。这是一些浏览器/缓存问题吗？ - 我正在使用Firefox。谢谢！

祝福，

基督教

PS：

操作：

[MembersOnlyAttribute]
        [AcceptVerbs(HttpVerbs.Get)]
        public ViewResult GlobalQualitativeFeature(string Id)
        {
            QualitativeGlobalFeature QualitativeGlobalFeature = null;

            if (TempData["ViewData"] != null)
            {
                ViewData = TempData["ViewData"] as ViewDataDictionary;
            }

            try
            {
                QualitativeGlobalFeature = FeatureService.GetQualitativeGlobalFeature(Id);
            }
            catch (Exception e)
            {
                ModelState.AddModelError("Exception", e.Message);
            }

            return View("GlobalQualitativeFeature", QualitativeGlobalFeature);
        }


[MembersOnlyAttribute]
        [AcceptVerbs(HttpVerbs.Post)]
        public RedirectToRouteResult DeleteQualitativeGlobalFeatureValue(string QualitativeGlobalFeatureValueId, string FeatureId)
        {
            try
            {
                FeatureService.GetQualitativeGlobalFeatureValueRepository().DbContext.BeginTransaction();
                FeatureService.DeleteQualitativeGlobalFeatureValue(QualitativeGlobalFeatureValueId);
                FeatureService.GetQualitativeGlobalFeatureValueRepository().DbContext.CommitTransaction();
            }
            catch (Exception e)
            {
                ModelState.AddModelError("Exception", e.Message);
                FeatureService.GetQualitativeGlobalFeatureValueRepository().DbContext.RollbackTransaction();
            }

            TempData["ViewData"] = ViewData;

            return RedirectToAction("GlobalQualitativeFeature", new { Id = FeatureId });
        }

Answer 1

我怀疑以下情况。单击9010的删除按钮。表单已发布，POST请求包含QualitativeGlobalFeatureValueId=9010。在控制器操作中，呈现相同的视图。这是陷阱。当你这样写：

<%= Html.Hidden(
    "QualitativeGlobalFeatureValueId", 
    QualitativeGlobalFeatureValue.Id)
%>

HTML帮助程序（而不仅仅是这一个）将首先查看是否存在与字段名称（QualitativeGlobalFeatureValueId）同名的请求参数，并将使用此值而不是您指定的值第二个论点（就是这样，不要问我为什么，这是设计）。所以要解决这个问题，唯一的办法就是手动渲染隐藏字段：

<input 
    id="QualitativeGlobalFeatureValueId" 
    name="QualitativeGlobalFeatureValueId" 
    value="<%= QualitativeGlobalFeatureValue.Id %>" 
    type="hidden" 
/>

Answer 2

您可以在标记和调试中放置断点，但它不允许在客户端标记或＆lt;％行上放置断点，因此您需要找到一个行继续。

你确定它不是一种排序重新排序或类似的东西，结果可能没有排序，结果会在以后发生吗？

HTH。

查看问题 - 多个“删除表单”

2 个答案: