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POOperation is not valid due to the current state of the object
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  1. POOperation is not valid due to the current state of the object
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    copied!<p>I'm using Entity Framework with ODP.NET 11.2.0.3.0. I got persistence working for some tables, but this one flat out refuses to add a simple new object and I can't quite figure it out. Your help is greatly appreciated. Thank you</p> <p>Here is the code. I removed the image field from the object through the model browser and still the code fails when SaveChanges() is called. </p> <pre><code>var corpDirectoryEntities = new CorpDirectoryEntities(); var cc = new EmployeePhoto(); cc.UserId = 12345; // NUMBER field cc.ImageName = "imagename"; // VARCHAR2(100) cc.Image = photoStream; // LONG RAW corpDirectoryEntities.EmployeePhotos.AddObject(cc); corpDirectoryEntities.SaveChanges(); </code></pre> <p>The following exception occurs.</p> <pre> System.Data.UpdateException was unhandled by user code Message=An error occurred while updating the entries. See the inner exception for details. Source=System.Data.Entity StackTrace: at System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter) at System.Data.EntityClient.EntityAdapter.Update(IEntityStateManager entityCache) at System.Data.Objects.ObjectContext.SaveChanges(SaveOptions options) at System.Data.Objects.ObjectContext.SaveChanges() at Repositories.Services.CorpDirectory.CorpDirectoryRepository.SaveDirectoryAccountPhoto(Int32 accountId, Byte[] photoStream) in C:\Dev\Projects\Repositories\Services\CorpDirectory\CorpDirectoryRepository.cs:line 356 at Tests.CorpDirectory.CorpDirectoryUserTestFixture.TestGetUserPhoto() in C:\Dev\Projects\Repositories.Tests\CorpDirectory\CorpDirectoryUserTestFixture.cs:line 192 InnerException: System.Data.EntityCommandCompilationException Message=An error occurred while preparing the command definition. See the inner exception for details. Source=System.Data.Entity StackTrace: at System.Data.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree) at System.Data.Mapping.Update.Internal.DynamicUpdateCommand.CreateCommand(UpdateTranslator translator, Dictionary`2 identifierValues) at System.Data.Mapping.Update.Internal.DynamicUpdateCommand.Execute(UpdateTranslator translator, EntityConnection connection, Dictionary`2 identifierValues, List`1 generatedValues) at System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter) InnerException: System.InvalidOperationException Message=Operation is not valid due to the current state of the object. Source=Oracle.DataAccess StackTrace: at Oracle.DataAccess.Client.SqlGen.DmlSqlGenerator.ExpressionTranslator.Visit(DbScanExpression expression) at System.Data.Common.CommandTrees.DbScanExpression.Accept(DbExpressionVisitor visitor) at Oracle.DataAccess.Client.SqlGen.DmlSqlGenerator.GenerateInsertSql(DbInsertCommandTree tree, EFOracleProviderManifest providerManifest, EFOracleVersion sqlVersion, List`1& parameters) at Oracle.DataAccess.Client.SqlGen.SqlGenerator.GenerateSql(DbCommandTree tree, EFOracleProviderManifest providerManifest, EFOracleVersion sqlVersion, List`1& parameters, CommandType& commandType) at Oracle.DataAccess.Client.EFOracleProviderServices.CreateCommand(EFOracleProviderManifest providerManifest, DbCommandTree commandTree) at Oracle.DataAccess.Client.EFOracleProviderServices.CreateDbCommandDefinition(DbProviderManifest providerManifest, DbCommandTree commandTree) at System.Data.Common.DbProviderServices.CreateCommandDefinition(DbCommandTree commandTree) at System.Data.Common.DbProviderServices.CreateCommand(DbCommandTree commandTree) at System.Data.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree) InnerException: </pre>
 

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