UOW - A second operation started on this context before a previous asynchronous operation completed

Question

I am trying following code, it has two parts, one is navigation via prism. When navigation is allowed I am starting a deep load asynchronously but each time with a new conte

Answer 1

The problem is this code :

_unitOfWork = _UnitOfWorkFactory.createUnitOfWorkAsync();

IEnumerable relaties = await getRelatieAsync(_unitOfWork, relatieId).ConfigureAwait(true);

_relatieTypeTypes = await getRelatieTypeTypesAsync(_unitOfWork, relatieId).ConfigureAwait(true);
_relatie = relaties.FirstOrDefault();

 _unitOfWork.Dispose();

the UnitOfWork is an instance variable, when the scenario starts a second time it is overwritten with a new instance. The already executing scenario then uses that new UnitOfWork instead of its own because it is overwritten. Not so easy to spot, but a simple race condition. I found it by replacing all instance variables by local variables and then the problem disappeared.