SupportClass.SetSupport.Add C# (CSharp) Méthode

        public new virtual bool Add(object objectToAdd)
        {
            if (this.Contains(objectToAdd))
                    return false;
                else
                {
                    base.Add(objectToAdd);
                    return true;
                }
        }

        /*
         * The subroutine of DFS. NOTE: the set is used to distinguish between 1st
         * and 2nd round of DFS. set == null: finished vertices are stored (1st
         * round). set != null: all vertices found will be saved in the set (2nd
         * round)
         */
        private void  dfsVisit(DirectedGraph graph, VertexData vertexData, SupportClass.SetSupport vertices)
        {
            System.Collections.ArrayList stack = new System.Collections.ArrayList();
            stack.Add(vertexData);

            while (!(stack.Count == 0))
            {
                VertexData data = (VertexData)SupportClass.StackSupport.Pop(stack);

                if (!data.m_discovered)
                {
                    data.m_discovered = true;

                    if (vertices != null)
                    {
                        vertices.Add(data.m_vertex);
                    }

                    // TODO: other way to identify when this vertex is finished!?
                    stack.Add(new VertexData(this, data, true, true));

                    // follow all edges
                    System.Collections.IEnumerator iter = graph.outgoingEdgesOf(data.m_vertex).GetEnumerator();

                    //UPGRADE_TODO: Method 'java.util.Iterator.hasNext' was converted to 'System.Collections.IEnumerator.MoveNext' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javautilIteratorhasNext'"
                    while (iter.MoveNext())
                    {
                        //UPGRADE_TODO: Method 'java.util.Iterator.next' was converted to 'System.Collections.IEnumerator.Current' which has a different behavior. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1073_javautilIteratornext'"
                        DirectedEdge edge       = (DirectedEdge)iter.Current;
                        VertexData   targetData = (VertexData)m_vertexToVertexData[edge.Target];

                        if (!targetData.m_discovered)
                        {
                            // the "recursion"
                            stack.Add(targetData);
                        }
                    }
                }
                else if (data.m_finished)
                {
                    if (vertices == null)
                    {
                        // see TODO above
                        m_orderedVertices.Insert(0, data.m_vertex);
                    }
                }
            }
        }