我正在尝试将MvcMiniProfiler集成到我的asp.net mvc实体framewok项目中.第一次Web请求时一切正常,但是在其他请求中给出了异常.
我的项目是
MVC 3
实体框架4.1(DatabaseFirst POCO Generator DbContext)
MvcMiniProfiler.dll 1.9.0.0
MvcMiniProfiler.EntityFramework.dll 1.9.1.0
我从Nu-Get安装了MvcMiniProfiler
下面添加到global.asax
protected void Application_BeginRequest() { if (Request.IsLocal) { MvcMiniProfiler.MiniProfiler.Start(); MiniProfilerEF.Initialize(); } }
下面添加到web.config
<system.data> <DbProviderFactories> <remove invariant="MvcMiniProfiler.Data.ProfiledDbProvider" /> <add name="MvcMiniProfiler.Data.ProfiledDbProvider" invariant="MvcMiniProfiler.Data.ProfiledDbProvider" description="MvcMiniProfiler.Data.ProfiledDbProvider" type="MvcMiniProfiler.Data.ProfiledDbProviderFactory,MvcMiniProfiler,Version=1.8.0.0,Culture=neutral,PublicKeyToken=b44f9351044011a3" /> </DbProviderFactories> </system.data>
我得到了这个例外
System.InvalidCastException was unhandled by user code Message=Unable to cast object of type 'MvcMiniProfiler.Data.EFProfiledDbConnection' to type 'System.Data.sqlClient.sqlConnection'. Source=System.Data StackTrace: at System.Data.sqlClient.sqlCommand.set_DbConnection(DbConnection value) at System.Data.Common.DbCommand.set_Connection(DbConnection value) at MvcMiniProfiler.Data.ProfiledDbCommand.set_DbConnection(DbConnection value) in C:\Users\sam\Desktop\mvc-mini-profiler\MvcMiniProfiler\Data\ProfiledDbCommand.cs:line 118 at System.Data.Common.DbCommand.set_Connection(DbConnection value) at System.Data.Common.Utils.CommandHelper.SetStoreProviderCommandState(EntityCommand entityCommand,EntityTransaction entityTransaction,DbCommand storeProviderCommand) at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand,CommandBehavior behavior) at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context,ObjectParameterCollection parameterValues)
EF调用中发生异常
ModaEntitiesWrapper.GetInstance().Articles .AsNoTracking() .Where(p => p.StatusId == 1).ToList();
如果我将Web.Config中MvcMiniProfiler.Data.ProfiledDbProvider的版本从1.8.0.0更改为1.9.0.0
MiniProfilerEF.Initialize()调用中出现了一种新类型的异常.
System.IndexOutOfRangeException was unhandled by user code Message=The given DataRow is not in the current DataRowCollection. Source=System.Data StackTrace: at System.Data.DataRowCollection.Remove(DataRow row) at MvcMiniProfiler.MiniProfilerEF.Initialize()