public void RetrieveUserGroups(UserModel user)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
if (userMapper.AreGroupsLoaded(user))
{
return;
}
user.Groups.EnableSync();
Task.Factory.StartNew(() =>
{
user.Groups.Clear();
var groups = repository.GetUserGroups(user.Name);
var groupModels = groups.Select(g => groupMapper.GetModel(g, includeDummy: false));
var modelComparer = KeyComparer <GroupModel> .OrderBy(m => m.Name);
foreach (GroupModel model in groupModels)
{
int index = user.Groups.ToSublist().UpperBound(model, modelComparer);
user.Groups.Insert(index, model);
}
}).ContinueWith(
t => onErrorOccurred(t.Exception),
CancellationToken.None,
TaskContinuationOptions.OnlyOnFaulted,
TaskScheduler.FromCurrentSynchronizationContext()
);
}
