我在我的 ASP.NET MVC 2 项目中遵循此链接中使用的相同方法，它工作正常。
我所有的页面都是部分视图（ascx）。因此，我在我的解决方案中创建了一个类库作为插件，方法与链接示例中的方式相同，并放置了一个新的局部视图和一个使用 MEF 从主机应用程序调用的控制器，并且它工作正常。
我的插件项目的不同之处在于我创建了一个新文件夹来放置我的模型。
下面的代码表示通过 MEF 在我的主机应用程序中成功显示为插件视图的部分视图
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
<div class="Container">
<p>Hello I am a Plugin Partial View</p>
</div>
但由于我在我的应用程序模型文件夹中添加了一个模型，我需要将它绑定到部分视图，方法与在我的主机 ASP.NET MVC 2 主机项目中所做的相同。
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>" %>
<div class="Container">
<p>Hello I am a Plugin Partial View</p>
</div>
将 ViewModel 添加到局部视图后，firebug 中会显示一个错误，并且我的视图不再加载。firebug 中显示的 http 响应中的错误如下所示：
<!DOCTYPE html>
<html>
<head>
<title>Parser Error</title>
<meta name="viewport" content="width=device-width" />
<style>
body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
pre {font-family:"Consolas","Lucida Console",Monospace;font- size:11pt;margin:0;padding:0.5em;line-height:14pt}
.marker {font-weight: bold; color: black;text-decoration: none;}
.version {color: gray;}
.error {margin-bottom: 10px;}
.expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
@media screen and (max-width: 639px) {
pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; }
}
@media screen and (max-width: 479px) {
pre { width: 280px; }
}
</style>
</head>
<body bgcolor="white">
<span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>
<h2> <i>Parser Error</i> </h2></span>
<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
<b> Description: </b>An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
<br><br>
<b> Parser Error Message: </b>Could not load type 'System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>'.<br><br>
<b>Source Error:</b> <br><br>
<table width=100% bgcolor="#ffffcc">
<tr>
<td>
<code><pre>
Line 11: --%>
Line 12:
<font color=red>Line 13: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>" %>
</font>Line 14:
Line 15: </pre></code>
</td>
</tr>
</table>
<br>
<b> Source File: </b> /Modules/Message/Views/Message/PartialView.ascx<b> Line: </b> 13
<br><br>
<hr width=100% size=1 color=silver>
<b>Version Information:</b> Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18010
</font>
</body>
</html>
<!--
[HttpException]: Could not load type 'System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>'.
at System.Web.UI.TemplateParser.GetType(String typeName, Boolean ignoreCase, Boolean throwOnError)
at System.Web.UI.TemplateParser.ProcessInheritsAttribute(String baseTypeName, String codeFileBaseTypeName, String src, Assembly assembly)
at System.Web.UI.TemplateParser.PostProcessMainDirectiveAttributes(IDictionary parseData)
[HttpParseException]: Could not load type 'System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>'.
at System.Web.UI.TemplateParser.ProcessException(Exception ex)
at System.Web.UI.TemplateParser.ParseStringInternal(String text, Encoding fileEncoding)
at System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding)
[HttpParseException]: Could not load type 'System.Web.Mvc.ViewUserControl<Plugin.Models.ViewModel>'.
at System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding)
at System.Web.UI.TemplateParser.ParseFile(String physicalPath, VirtualPath virtualPath)
at System.Web.UI.TemplateParser.Parse()
at System.Web.Compilation.BaseTemplateBuildProvider.get_CodeCompilerType()
at System.Web.Compilation.BuildProvider.GetCompilerTypeFromBuildProvider(BuildProvider buildProvider)
at System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders()
at System.Web.Compilation.BuildProvidersCompiler.PerformBuild()
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound)
at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp)
at System.Web.Mvc.WebFormViewEngine.FileExists(ControllerContext controllerContext, String virtualPath)
at System.Web.Mvc.VirtualPathProviderViewEngine.GetPathFromSpecificName(ControllerContext controllerContext, String name, String cacheKey, String[]& searchedLocations)
at System.Web.Mvc.VirtualPathProviderViewEngine.GetPath(ControllerContext controllerContext, String[] locations, String[] areaLocations, String locationsPropertyName, String name, String controllerName, String cacheKeyPrefix, Boolean useCache, String[]& searchedLocations)
at System.Web.Mvc.VirtualPathProviderViewEngine.FindView(ControllerContext controllerContext, String viewName, String masterName, Boolean useCache)
at System.Web.Mvc.ViewEngineCollection.<>c__DisplayClass6.<FindView>b__5(IViewEngine e)
at System.Web.Mvc.ViewEngineCollection.Find(Func`2 cacheLocator, Func`2 locator)
at System.Web.Mvc.ViewResult.FindView(ControllerContext context)
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass14. <InvokeActionResultWithFilters>b__11()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at System.Web.Mvc.Controller.ExecuteCore()
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__4()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass1.<MakeVoidDelegate>b__0()
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
-->
我还复制了web.config文件并添加了模型命名空间，如下所示：
<system.web>
<pages>
<namespaces>
<add namespace='Plugin.Models.ViewModel' />
</namespaces>
</pages>
</system.web>
但这也不起作用。