以下代码抛出了第一次机会异常：
public HttpResponseMessage Get(int id)
{
try
{
var module = _module.ODataQueryable().SingleOrDefault(m => m.ModuleId == id);
return Request.CreateResponse(HttpStatusCode.Created, module);
}
catch (Exception ex)
{
Log.ErrorException("Error adding module", ex);
return Request.CreateResponse(HttpStatusCode.BadRequest, ex.Message);
}
}
如果我们用一个硬编码的int值替换id变量，例如34，则代码运行。
异常的来源是Glimpse.EF6，堆栈跟踪是：
at Glimpse.EF.AlternateType.GlimpseDbProviderServices.SetDbParameterValue(DbParameter parameter, TypeUsage parameterType, Object value)
at System.Data.Entity.Core.Common.DbProviderServices.SetParameterValue(DbParameter parameter, TypeUsage parameterType, Object value)
at System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.SyncParameterProperties(EntityParameter entityParameter, DbParameter storeParameter, DbProviderServices storeProviderServices)
at System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.PrepareEntityCommandBeforeExecution(EntityCommand entityCommand)
at System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
at System.Data.Entity.Core.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
at System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClass7.<GetResults>b__6()
at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
at System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClass7.<GetResults>b__5()
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
at System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
at System.Data.Entity.Core.Objects.ObjectQuery`1.<System.Collections.Generic.IEnumerable<T>.GetEnumerator>b__0()
at System.Data.Entity.Internal.LazyEnumerator`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__2[TResult](IEnumerable`1 sequence)
at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
at System.Data.Entity.Internal.Linq.DbQueryProvider.Execute[TResult](Expression expression)
at System.Linq.Queryable.SingleOrDefault[TSource](IQueryable`1 source, Expression`1 predicate)
at Denarii.Issuing.Web.ClientPortal.Api.ModuleController.Get(Int32 id) in c:\Projects\Denarii.Issuing\Denarii.Issuing.Web.ClientPortal\Api\ModuleController.cs:line 64
我是否需要调试Glimpse EF6插件？从WinForms应用程序或控制台应用程序调用时，模块服务（_module）可以正常工作。任何帮助非常感谢。