Problem after windows update (Microsoft.Jet.OLEDB.4.0 no longer works)

Hi team,

Today I update my Windows and after this, my test with LinqToExcel fails. Is any have the same problem?

Error log:
Controllers\Cargas\InformeDeCargasController.cs(81,51): warning CS0429: Se ha detectado un código de expresión al que no se puede tener acceso [D:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Web\Web.csproj]
--
Controllers\Cargas\InformeDeCargasController.cs(82,51): warning CS0429: Se ha detectado un código de expresión al que no se puede tener acceso [D:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Web\Web.csproj]
Error Message:
Test method Infraestructura.Test.Readers.LecturaDeMDTArchivoExcelTest.VerificaLaLecturaDeTodosLosCampos threw exception:
System.InvalidOperationException: Error en la lectura del archivo. Verifique que contenga todas las columnas requeridas.
Stack Trace:
en Infraestructura.Readers.LectorXLSMovimientosDepositoDeTerceros.LeerYRetornarEnumerator() en d:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Infraestructura\Readers\LectorXLSMovimientosDepositoDeTerceros.cs:línea 73
en Infraestructura.Readers.LectorXLSMovimientosDepositoDeTerceros.GetEnumerator() en d:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Infraestructura\Readers\LectorXLSMovimientosDepositoDeTerceros.cs:línea 81
en Infraestructura.Test.Readers.LecturaDeMDTArchivoExcelTest.VerificaLaLecturaDeTodosLosCampos() en d:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Infraestructura.Test\Readers\LecturaDeMDTArchivoExcelTest.cs:línea 50
Error Message:
Test method Infraestructura.Test.Readers.LecturaArchivoExcelTest.LeeArchivoExcel threw exception:
System.Data.OleDb.OleDbException: Error no esperado desde el controlador de la base de datos externa (1) .
Stack Trace:
en System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection)
en System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
en System.Data.ProviderBase.DbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
en System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)
en System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
en System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
en System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
en System.Data.ProviderBase.DbConnectionInternal.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
en System.Data.OleDb.OleDbConnection.Open()
en LinqToExcel.Query.ExcelQueryExecutor.GetDataResults(SqlParts sql, QueryModel queryModel)
en LinqToExcel.Query.ExcelQueryExecutor.ExecuteCollection[T](QueryModel queryModel)
en LinqToExcel.Query.ExcelQueryExecutor.ExecuteSingle[T](QueryModel queryModel, Boolean returnDefaultWhenEmpty)
en LinqToExcel.Query.ExcelQueryExecutor.ExecuteScalar[T](QueryModel queryModel)
en Remotion.Data.Linq.Clauses.StreamedData.StreamedScalarValueInfo.ExecuteScalarQueryModel[T](QueryModel queryModel, IQueryExecutor executor)
en Remotion.Data.Linq.Clauses.StreamedData.StreamedScalarValueInfo.ExecuteQueryModel(QueryModel queryModel, IQueryExecutor executor)
en Remotion.Data.Linq.QueryModel.Execute(IQueryExecutor executor)
en Remotion.Data.Linq.QueryProviderBase.Execute[TResult](Expression expression)
en System.Linq.Queryable.Count[TSource](IQueryable`1 source)
en Infraestructura.Test.Readers.LecturaArchivoExcelTest.LeeArchivoExcel() en d:\CruiseControl.NET\builds\TransoftWEBDesarrollo\src\Infraestructura.Test\Readers\LecturaArchivoExcelTest.cs:línea 44
Test Run Failed.

[volkermauel]

Investigating now: Error happens upon opening the connection. There are no more details sadly and i’m no expert on OLEDB / JetEngine, but according to wikipedia ACE 12 supports everything that OLE 4 does, so shouldn’t it be possible to simply switch ExcelUtilities.cs Line 48

else
            {
                if (args.DatabaseEngine == DatabaseEngine.Jet)
                {
                    connString = string.Format(
                        @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=""Excel 8.0;HDR=YES;IMEX=1""",
                        args.FileName);
                }
                else
                {
                    connString = string.Format(
                        @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0;HDR=YES;IMEX=1""",
                        args.FileName);
                }
            }

to

else
            {
                    connString = string.Format(
                        @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0;HDR=YES;IMEX=1""",
                        args.FileName);
            }

If you have access to the source code of the application using linqtoexcel, you could also define the Engine when creating the ExcelQueryFactory like this: using (var eqf = new ExcelQueryFactory(@"") { DatabaseEngine = DatabaseEngine.Ace })

i’ll try to run the tests in a second to find out if there is any case that does not work with the solution.

[adamswallows]

Even if the database engine is defined as Ace, when “GetWorksheetNames” or “GetColumnNames” is called it’s defaulting back to the Jet engine…causing it to fail again. For now, we can use a custom build of the library.