AddIfNotPresent()

override bool System.Collections.Generic.TreeSet< T >.AddIfNotPresent ( T item )

inlinepackagevirtual

Reimplemented from System.Collections.Generic.SortedSet< T >.

Definition at line 29 of file TreeSet.cs.

    {
        bool flag = base.AddIfNotPresent(item);
        if (!flag)
        {
            throw new ArgumentException(System.SR.Format(System.SR.Argument_AddingDuplicate, item));
        }
        return flag;
    }

References System.SR.Argument_AddingDuplicate, System.SR.Format(), and System.item.