public static IEnumerable Distinct(IEnumerable items, IInvoker param, IComparer comparer = null)
{
var oldValue = (object)null;
var list = items.Cast <object>().ToList();
ListHelper.QuickSort(list, comparer ?? ((IInvokerExtension)param).CreateComparer(param.TargetType, ListSortDirection.Descending));
foreach (var item in list)
{
var newValue = param.GetValue(item);
if (!Equal(newValue, oldValue))
{
oldValue = newValue;
if (newValue != null)
{
yield return(item);
}
}
}
}
public void Sort(IComparer <T> comp)
{
ListHelper.QuickSort <T>(items, comp);
}
public void SortInternal()
{
ListHelper.QuickSort <T>(items, comparer);
}
public virtual void ApplySortInternal(IComparer <T> comparer)
{
this.comparer = comparer;
ListHelper.QuickSort <T>(items, this.comparer);
//_items.Sort(comparer);
}
