System.InvalidCastException: Object cannot be cast from DBNull to other types. [DNET913]

[firebird-automations]

Submitted by: @cincuranet

Attachments: EFDataAccess.zip REPORTTEST.FDB

Votes: 2

System.InvalidCastException: Object cannot be cast from DBNull to other types.

at System.DBNull.System.IConvertible.ToInt32(IFormatProvider provider)

at System.Convert.ToInt32(Object value, IFormatProvider provider)

at FirebirdSql.Data.Common.DbValue.GetInt32()

at FirebirdSql.Data.FirebirdClient.FbDataReader.<GetInt32>b__51_0(Int32 x)

at FirebirdSql.Data.FirebirdClient.FbDataReader.CheckedGetValue[T](Func`2 f, Int32 index)

at FirebirdSql.Data.FirebirdClient.FbDataReader.GetInt32(Int32 i)

at lambda_method(Closure , DbDataReader )

at Microsoft.EntityFrameworkCore.Storage.Internal.NoopExecutionStrategy.Execute[TState,TResult](TState state, Func`3 operation, Func`3 verifySucceeded)

at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()

at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider._TrackEntities[TOut,TIn](IEnumerable`1 results, QueryContext queryContext, IList`1 entityTrackingInfos, IList`1 entityAccessors)+MoveNext()

at Microsoft.EntityFrameworkCore.Query.Internal.LinqOperatorProvider.ExceptionInterceptor`1.EnumeratorExceptionInterceptor.MoveNext()

[firebird-automations]

Modified by: @cincuranet

Attachment: EFDataAccess.zip [ 13396 ]

Attachment: REPORTTEST.FDB [ 13397 ]