我们最近升级了我们的应用程序,发现在所有的Html.ValidationMessages和Html.ValidationMessageFor中都出现了运行时错误。错误是:“给定的键不在字典中。”我们一直传递modelName/expression,直到升级之前都没有问题。我还查看了自述文件中描述的破坏性更改,但没有注意到与此有关的任何内容。
我在这里遇到了同样的错误,Levi,我知道你是asp.net mvc团队的一员,能否提供一些指导?
以下是错误信息。
Line 185: // rules will already have been written to the metadata object
Line 186: fieldMetadata.ReplaceValidationMessageContents = (String.IsNullOrEmpty(validationMessage)); // only replace contents if no explicit message was specified
Line 187: fieldMetadata.ValidationMessageId = builder.Attributes["id"];
Line 188: }
Line 189:
这里是跟踪信息。
[KeyNotFoundException: The given key was not present in the dictionary.]
System.ThrowHelper.ThrowKeyNotFoundException() +29
System.Collections.Generic.SortedDictionary`2.get_Item(TKey key) +5167507
System.Web.Mvc.Html.ValidationExtensions.ValidationMessageHelper(HtmlHelper htmlHelper, ModelMetadata modelMetadata, String expression, String validationMessage, IDictionary`2 htmlAttributes) in D:\Projects\Practice\Mercurial\onlinerestaurant\trunk\ReferenceProjects\aspnetmvc2-rc-sources\src\SystemWebMvc\Mvc\Html\ValidationExtensions.cs:187
System.Web.Mvc.Html.ValidationExtensions.ValidationMessageFor(HtmlHelper`1 htmlHelper, Expression`1 expression, String validationMessage, IDictionary`2 htmlAttributes) in D:\Projects\Practice\Mercurial\onlinerestaurant\trunk\ReferenceProjects\aspnetmvc2-rc-sources\src\SystemWebMvc\Mvc\Html\ValidationExtensions.cs:146
System.Web.Mvc.Html.ValidationExtensions.ValidationMessageFor(HtmlHelper`1 htmlHelper, Expression`1 expression) in D:\Projects\Practice\Mercurial\onlinerestaurant\trunk\ReferenceProjects\aspnetmvc2-rc-sources\src\SystemWebMvc\Mvc\Html\ValidationExtensions.cs:131
ASP.views_admin_createmenucategory_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\Projects\Practice\Mercurial\onlinerestaurant\trunk\OnlineRestaurant\Views\Admin\CreateMenuCategory.ascx:26
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +256
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
System.Web.UI.Control.Render(HtmlTextWriter writer) +10
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
System.Web.UI.Page.Render(HtmlTextWriter writer) +29
System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) in D:\Projects\Practice\Mercurial\onlinerestaurant\trunk\ReferenceProjects\aspnetmvc2-rc-sources\src\SystemWebMvc\Mvc\ViewPage.cs:107
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266