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myRepository.GetAllList() throws InvalidCastException #121


0
vinzz created

Hi there !

I hope this is gonna be a simple one for you : I get an exception when doing operations on my repository.

settingsRepository.GetAll();       //OK
settingsRepository.GetAllList();   //InvalidCastException
settingsRepository.Single(...);    //InvalidCastException

The domain object that the repository handles is quite simple:

public partial class Setting : Entity<string>
{
    public double OrderList { get; set; }
    public string ListType { get; set; }
    public string Value { get; set; }
    public string Type { get; set; }
}

and my Oracle DB types are:

ID    CHAR(20)
ORDER_LIST   NUMBER(10,2)
all the rest   VARCHAR2(50)

Full stacktrace:

à System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   à Oracle.ManagedDataAccess.Client.OracleDataReader.ChangeType(Object sourceValue, Type targetType)
   à Oracle.ManagedDataAccess.Client.OracleDataReader.GetValue(Int32 i)
   à System.Data.Entity.Core.Common.Internal.Materialization.Shaper.ErrorHandlingValueReader`1.GetUntypedValueDefault(DbDataReader reader, Int32 ordinal)
   à System.Data.Entity.Core.Common.Internal.Materialization.Shaper.ErrorHandlingValueReader`1.GetValue(DbDataReader reader, Int32 ordinal)
   à System.Data.Entity.Core.Common.Internal.Materialization.Shaper.GetColumnValueWithErrorHandling[TColumn](Int32 ordinal)
   à lambda_method(Closure , Shaper )
   à System.Data.Entity.Core.Common.Internal.Materialization.Coordinator`1.ReadNextElement(Shaper shaper)
   à System.Data.Entity.Core.Common.Internal.Materialization.Shaper`1.SimpleEnumerator.MoveNext()
   à System.Data.Entity.Internal.LazyEnumerator`1.MoveNext()
   à System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
   à System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__3[TResult](IEnumerable`1 sequence)
   à System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
   à System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   à System.Data.Entity.Internal.Linq.DbQueryProvider.Execute[TResult](Expression expression)
   à System.Linq.Queryable.Single[TSource](IQueryable`1 source, Expression`1 predicate)
   à Abp.Domain.Repositories.AbpRepositoryBase`2.Single(Expression`1 predicate)
   à Castle.Proxies.ParamRepositoryProxy.Single_callback(Expression`1 predicate)
   à Castle.Proxies.Invocations.AbpRepositoryBase`2_Single_10.InvokeMethodOnTarget()
   à Castle.DynamicProxy.AbstractInvocation.Proceed()
   à Abp.Domain.Uow.UnitOfWorkInterceptor.Intercept(IInvocation invocation)
   à Castle.DynamicProxy.AbstractInvocation.Proceed()
   à Castle.Proxies.ParamRepositoryProxy.Single(Expression`1 predicate)
   à WebAero.BusinessLayer.Contact.ContactAppService.RegisterContactRequest(RequesterRequest rr) dans     d:\Dev\Drivor\DEV\Drivor.BackEnd\Drivor.BusinessLayer\Contact\ContactAppService.cs:ligne 115

Any help is greatly appreciated !

Thanks


1 Answer(s)
  • 0
    hikalkan created
    Support Team

    I don't have experience on Oracle. It seems there is a problem with converting value from oracle to c#. BTW, GetAll() does not throw exception since it does not execute query unless you enumerate it (like GetAll().ToList()).