public static IEnumerable <Model.Field> ToFields(this System.ComponentModel.SortDescriptionCollection sortDescriptionCollection)
{
IList <Model.Field> result = new List <Model.Field>();
if (sortDescriptionCollection != null)
{
foreach (System.ComponentModel.SortDescription item in sortDescriptionCollection)
{
result.Add(new Field(item.PropertyName)
{
SortDirection = item.Direction
});
}
}
return(result);
}
// set new SortDescription collection; rehook collection change notification handler
private void SetSortDescriptions(SortDescriptionCollection descriptions)
{
if (_sort != null)
{
((INotifyCollectionChanged)_sort).CollectionChanged -= new NotifyCollectionChangedEventHandler(SortDescriptionsChanged);
}
bool raiseChangeEvent = (_sort != descriptions);
_sort = descriptions;
if (_sort != null)
{
Invariant.Assert(_sort.Count == 0, "must be empty SortDescription collection");
((INotifyCollectionChanged)_sort).CollectionChanged += new NotifyCollectionChangedEventHandler(SortDescriptionsChanged);
}
if (raiseChangeEvent)
{
OnPropertyChanged(new PropertyChangedEventArgs("SortDescriptions"));
}
}
public IList <IRoleViewModel> LoadRange(int startIndex, int count, System.ComponentModel.SortDescriptionCollection sortDescriptions, out int overallCount)
{
var retVal = new List <IRoleViewModel>();
using (var repository = _repositoryFactory.GetRepositoryInstance())
{
var query = repository.Roles;
if (!string.IsNullOrEmpty(SearchKeyword))
{
query = query.Where(c => c.Name.Contains(SearchKeyword));
}
overallCount = query.Count();
var results = query.OrderBy(c => c.RoleId).Skip(startIndex).Take(count).ToList();
retVal.AddRange(results.Select(item => _itemVmFactory.GetViewModelInstance(new KeyValuePair <string, object>("item", item))));
}
return(retVal);
}
