в System.Linq.Expressions.Expression.FindMethod(Type type, String methodName, Type[] typeArgs, Expression[] args, BindingFlags flags)
   в System.Linq.Expressions.Expression.Call(Type type, String methodName, Type[] typeArguments, Expression[] arguments)
   в IdeaBlade.Windows.EntityQueryPagedCollectionView.BuildOrderedQuery()
   в IdeaBlade.Windows.EntityQueryPagedCollectionView.DoInitialLoad()
   в IdeaBlade.Windows.EntityQueryPagedCollectionView.Refresh()
   в IdeaBlade.Windows.ObjectDataSource.LoadView()
   в IdeaBlade.Windows.ObjectDataSource.LoadCore()
   в IdeaBlade.Windows.ObjectDataSource.ObjectDataSource_Loaded(Object sender, RoutedEventArgs e)
   в MS.Internal.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
   в MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)

//resiltFileDds is a ObjectDataSource: <ib:ObjectDataSource x:Name="infileDds" AutoLoad="False" PageSize="65000" LoadSize="65000"/>

  resiltFileDds.Query = (from resf in _dbCtx.ServiceTaskResultFileTemp
                                  join fd in _dbCtx.FileData on resf.FileDataId equals fd.Oid
                                  where fd.GCRecord == null && resf.ServiceTaskId == _someId
                                  orderby resf.ServiceTaskResultFileId   //!!
                                  select new DBTaskFileInfo  //this item shared (add as link) between SL and asp.net project
                                  {
                                     .....//see in logs//
                                  }).With(QueryStrategy.DataSourceOnly);

resiltFileDds.Load(); ....

Fetch ... value(IdeaBlade.EntityModel.EntityQueryProxy`1[CivilizationWeb.Models.ServiceTaskInitialFileTemp]).Join(value(IdeaBlade.EntityModel.EntityQueryProxy`1[CivilizationWeb.Models.FileData]), inf => inf.FileDataId, fd => Convert(fd.Oid), (inf, fd) => new _IB_f__AnonymousType3`2x2127173938() {inf = inf, fd = fd}).Where(<>h__TransparentIdentifier1 => ((<>h__TransparentIdentifier1.fd.GCRecord == null) AndAlso (<>h__TransparentIdentifier1.inf.ServiceTaskId == 305))).Select(<>h__TransparentIdentifier1 => new DBTaskFileInfo() {FileName = <>h__TransparentIdentifier1.fd.FileName, Title = <>h__TransparentIdentifier1.inf.Name, Oid = <>h__TransparentIdentifier1.fd.Oid, ServiceTaskId = <>h__TransparentIdentifier1.inf.ServiceTaskInitialFileId, Date = <>h__TransparentIdentifier1.inf.Date}).OrderByDescending(ti => ti.Date).ThenBy(Param_0 => Param_0.Oid).Take(65000)