مشکل در خواندن اظلاعات از دیتابیس با استفاده از Devexpress

[amir.khanlari]

سلام دوستان
من موقع خوندن اطلاعات با Devexpress مشکل دارم.
وقتی می خوام از دیتابیس حداقل 100 تا رکورد رو بخونم خطا می ده و دیکه تا وقتی از برنامه خارج نشم هیچ دیتایی رو از دیتابیس نمی خونه.

at DevExpress.Xpo.DB.ConnectionProviderSql.SelectData (Query query, CriteriaOperatorCollection targets)
at DevExpress.Xpo.DB.ConnectionProviderSql.ProcessSel ectData(SelectStatement selects)
at DevExpress.Xpo.DB.DataStoreBase.ProcessSelectData( SelectStatement[] selects)
at DevExpress.Xpo.DB.DataStoreSerializedBase.SelectDa ta(SelectStatement[] selects)
at DevExpress.Xpo.DB.ConnectionProviderSql.SelectData (SelectStatement[] selects)
at DevExpress.Xpo.SimpleDataLayer.SelectData(SelectSt atement[] selects)
at DevExpress.Xpo.Helpers.DataLayerWrapperS18452.Sele ctData(SelectStatement[] selects)
at DevExpress.Xpo.Helpers.ObjectCollectionLoader.Inte rnalLoadData(ObjectsQuery[] queries)
at DevExpress.Xpo.Helpers.ObjectCollectionLoader.Load Objects(ObjectsQuery[] queries)
at DevExpress.Xpo.SimpleObjectLayer.LoadObjects(Sessi on session, ObjectsQuery[] queries)
at DevExpress.Xpo.Session.GetObjectsInternal(ObjectsQ uery[] queries)
at DevExpress.Xpo.Session.<>c__DisplayClasse.<GetObjects>b__c()
at DevExpress.Xpo.Logger.LogManager.Log[T](String category, LogHandler`1 handler, MessageHandler`1 createMessageHandler)
at DevExpress.Xpo.Session.GetObjects(ObjectsQuery[] queries)
at DevExpress.Xpo.Session.GetObjects(ObjectsQuery query)
at DevExpress.Xpo.Session.GetObjects(XPClassInfo classInfo, CriteriaOperator criteria, SortingCollection sorting, Int32 skipSelectedRecords, Int32 topSelectedRecords, Boolean selectDeleted, Boolean force)
at DevExpress.Xpo.Session.<>c__DisplayClass29.<Reload>b__27()
at DevExpress.Xpo.Logger.LogManager.Log(String category, LogHandlerVoid handler, MessageHandler`1 createMessageHandler, ExceptionHandler exceptionHandler)
at DevExpress.Xpo.Session.Reload(Object theObject)
at DevExpress.Xpo.XPBaseObject.Reload()




at DevExpress.Xpo.DB.ConnectionProviderSql.SelectData Simple(Query query, CriteriaOperatorCollection targets)
at DevExpress.Xpo.DB.ConnectionProviderSql.SelectData (Query query, CriteriaOperatorCollection targets)
at DevExpress.Xpo.DB.ConnectionProviderSql.ProcessSel ectData(SelectStatement selects)
at DevExpress.Xpo.DB.DataStoreBase.ProcessSelectData( SelectStatement[] selects)
at DevExpress.Xpo.DB.DataStoreSerializedBase.SelectDa ta(SelectStatement[] selects)
at DevExpress.Xpo.DB.ConnectionProviderSql.SelectData (SelectStatement[] selects)
at DevExpress.Xpo.SimpleDataLayer.SelectData(SelectSt atement[] selects)
at DevExpress.Xpo.Helpers.DataLayerWrapperS18452.Sele ctData(SelectStatement[] selects)
at DevExpress.Xpo.Helpers.ObjectCollectionLoader.Inte rnalLoadData(ObjectsQuery[] queries)
at DevExpress.Xpo.Helpers.ObjectCollectionLoader.Load Objects(ObjectsQuery[] queries)
at DevExpress.Xpo.SimpleObjectLayer.LoadObjects(Sessi on session, ObjectsQuery[] queries)
at DevExpress.Xpo.Session.GetObjectsInternal(ObjectsQ uery[] queries)
at DevExpress.Xpo.Session.<>c__DisplayClasse.<GetObjects>b__c()
at DevExpress.Xpo.Logger.LogManager.Log[T](String category, LogHandler`1 handler, MessageHandler`1 createMessageHandler)
at DevExpress.Xpo.Session.GetObjects(ObjectsQuery[] queries)
at DevExpress.Xpo.Session.GetObjects(ObjectsQuery query)
at DevExpress.Xpo.XPBaseCollection.Load()
at DevExpress.Xpo.XPBaseCollection.get_Objects()
at DevExpress.Xpo.XPBaseCollection.get_Count()


این stacktrace خطایی هستش که می ده.
لطفا کمک کنین دوستان خیلی کارم به مشکل خورده.
ممنون