| RemoveDuplicates(ListBox) | Removes duplicated items in the source ListBox, using the default EqualityComparerT to compare the items. |
| RemoveDuplicatesT(ListBox) | Removes duplicated items of the specified Type in the source ListBox, using the default EqualityComparerT to compare the items. |
| RemoveDuplicatesT(ListBox, IEqualityComparerT) | Removes duplicated items of the specified Type in the source ListBox. |