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Sorting TreeView Nodes.

directxBOB
directxBOB asked
on
5,023 Views
Last Modified: 2007-12-19
I want to sort my TreeView alphabetically.

So all the Nodes, and all of their children are sorted alphabetically.

I have searched previous solutions and found this bubble search:


   public static void SortNodes(System.Windows.Forms.TreeNode _Node)
    {
      SortTreeNodes(_Node.Nodes);
    }

    public static void RecurseTree(System.Windows.Forms.TreeNodeCollection _Nodes, ProcessNodeDelegate FunctionToCall)
    {
      if (_Nodes == null || FunctionToCall == null)
      {
        return;
      }
      foreach (System.Windows.Forms.TreeNode Child in _Nodes)
      {
        RecurseTree(Child.Nodes, FunctionToCall);
        FunctionToCall(Child);
      }
    }
    public delegate void ProcessNodeDelegate(System.Windows.Forms.TreeNode _Node);

    public static void SortTreeView(System.Windows.Forms.TreeView _TreeView)
    {
      RecurseTree(_TreeView.Nodes, new ProcessNodeDelegate(SortNodes));
    }

    public static void SortTreeNodes(TreeNodeCollection _Nodes)
    {
      for (int i = 0; i < _Nodes.Count - 1; i++)
      {
        for (int j = _Nodes.Count - 1; j > i; j--)
        {
          if (((IComparable)_Nodes[j - 1].Tag).CompareTo(_Nodes[j].Tag) >= 0)
          {
            TreeNode tmp = _Nodes[j];
            _Nodes[j] = _Nodes[j - 1];
            _Nodes[j - 1] = tmp;
          }
        }
      }
    }
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