private void DoSort(object obj)
{
var sort = (ActivitySort)Enum.Parse(typeof(ActivitySort), obj.ToString());
switch (sort)
{
case ActivitySort.Title:
Activities = new CustomObservableCollection <Activity>(Activities.OrderBy(e => e.IsReading ? 0 : 1).ThenBy(e => e.Book.Title));
break;
case ActivitySort.Author:
Activities = new CustomObservableCollection <Activity>(Activities.OrderBy(e => e.IsReading ? 0 : 1).ThenBy(e => e.Book.Author));
break;
case ActivitySort.AddDate:
Activities = new CustomObservableCollection <Activity>(Activities.OrderBy(e => e.IsReading ? 0 : 1).ThenBy(e => e.AddDate)); break;
}
}