示例#1
0
 protected override void UndoCore()
 {
     collection.Remove(index, count);
     collection.SetRange(collection.Length - count, savedRange);
     savedRange = null;
 }
示例#2
0
 protected override void UndoCore()
 {
     collection.Remove(index, newRange.Length);
     collection.SetRange(collection.Length - newRange.Length, savedRange);
     savedRange = null;
 }
示例#3
0
 protected override void UndoCore()
 {
     collection.SetRange(startIndex, oldRange);
     oldRange = null;
 }