private int Reposition(int index)
{
if (filtered)
{
if (!MatchesFilter(publist[index]))
{
publist.RemoveAt(index);
DoListChanged(new ListChangedEventArgs(ListChangedType.ItemDeleted, index));
return(-1);
}
}
if (sorted)
{
PropertyComparer <T> pc = new PropertyComparer <T>(property, direction);
T v = publist[index];
publist.RemoveAt(index);
int next = 1, offset = 0;
do
{
next = pc.Compare(v, publist[offset]);
offset += next;
if (offset >= publist.Count || offset < 0)
{
break;
}
} while (next != 0);
if (offset < 0)
{
publist.Insert(0, v);
DoListChanged(new ListChangedEventArgs(ListChangedType.ItemMoved, 0, index));
return(0);
}
else if (offset >= publist.Count)
{
publist.Add(v);
DoListChanged(new ListChangedEventArgs(ListChangedType.ItemMoved, publist.Count - 1, index));
return(publist.Count - 1);
}
else
{
publist.Insert(offset, v);
DoListChanged(new ListChangedEventArgs(ListChangedType.ItemMoved, offset, index));
return(offset);
}
}
return(index);
}
protected override void ApplySortCore(PropertyDescriptor property, ListSortDirection direction)
{
// Get list to sort
List <T> items = this.Items as List <T>;
// Apply and set the sort, if items to sort
if (items != null)
{
PropertyComparer <T> pc = new PropertyComparer <T>(property, direction);
items.Sort(pc);
isSorted = true;
}
else
{
isSorted = false;
}
// Let bound controls know they should refresh their views
this.OnListChanged(new ListChangedEventArgs(ListChangedType.Reset, -1));
}
