find out the exact entity causing an exception in entity framework

Question

The entity framework gives me generic messages in the exception without telling me the exact entity and the attribute which caused the error. How do I get more information about

Answer 1

You need to write tests for repositories and in the base class for your tests:

try
{
    DbContext.SaveChanges();
}
catch (DbEntityValidationException e)
{
    e.EntityValidationErrors.SelectMany(error => error.ValidationErrors).ToList().ForEach(
    item => Console.WriteLine("{0} - {1}", item.PropertyName, item.ErrorMessage));
    throw;
}