Validation failed for one or more entities - entity-framework-4

Question

I have following code in my asp.net MVC3 application:
string msg = "Beginning report run for: ";
msg += " Obligor Registry ID: " + obligorID;
msg += " Requesting Organization Registry ID:" + requestingOrgID;
msg += " Requesting Agent Registry ID: " + requestingAgentID;
TransactionLog lg = new TransactionLog();
lg.TransactionTypeId = 2;
lg.Message = msg;
context.TransactionLogs.Add(lg);
long referenceNumber = context.SaveChanges();
return referenceNumber;
and I am getting following error:
Validation failed for one or more entities. See 'EntityValidationErrors' property for more details.

Answer 1

While you are in debug mode within the catch {...} block open up the "QuickWatch" window (ctrl+alt+q) and paste in there:
((System.Data.Entity.Validation.DbEntityValidationException)ex).EntityValidationErrors
This will allow you to drill down into the ValidationErrors tree. It's the easiest way I've found to get instant insight into these errors.

Answer 2

catch (DbEntityValidationException dbEx)
{
foreach (var validationErrors in dbEx.EntityValidationErrors)
{
foreach (var validationError in validationErrors.ValidationErrors)
{
Trace.TraceInformation("Property: {0} Error: {1}", validationError.PropertyName, validationError.ErrorMessage);
}
}
}
You need the namespace: System.Data.Entity.Validation

Answer 3

#GONeale helped me out in this regard. Moreover cause for this exception in my case is that I have certain not null db fields which I didnt included in the partial response update for certain transaction. context.Database.ExecuteSQLCommand would be my suggestion in this case.