Recursive creation of nodes

[Reiner Ebel]

Hello,

When I create nodes I have a problem. I have a list:

e.g.:

class Liste
{
    public string pfad;
    public Liste(string pfad)
    {
        this.pfad = pfad;
    }
}

....

if (!IsPostBack)
{
    LadeWerte();
    ZeigeTreeView();
}

.....

private void LadeWerte()
{
liste.Add(new Liste("c:\\dateien\\nord\\stad_nord"));
liste.Add(new Liste("c:\\dateien\\stad_test"));
liste.Add(new Liste("c:\\dateien\\nord\\stad_sued"));
}

From this list, I create nodes. Here is my code:

private void ZeigeTreeView()
    {
        RadTreeNode rtn = new RadTreeNode("Layouts", "rootfolder");

        foreach (Liste list in liste)
        {
            Rekursiv(rtn, list.pfad);
        }

        RadTreeView1.Nodes.Add(rtn);
    }

    private void Rekursiv(RadTreeNode node, string newnode)
    {
        if (newnode != "")
        {
            RadTreeNode rtn2 = new RadTreeNode();
            string substr = "";
            if (newnode.LastIndexOf("\\") > 0)
                substr = newnode.Substring(0, newnode.IndexOf("\\"));
            else
                substr = newnode;
            rtn2.Text = substr;
            rtn2.Value = "Folder";
            string nextnode = "";
            if (newnode.IndexOf("\\") > 0)
            {
                nextnode = newnode.Substring(newnode.IndexOf("\\") + 1);
                Rekursiv(rtn2, nextnode);
            }
            node.Nodes.Add(rtn2);
        }
    }

I get the following structure:

+Layouts
    +c:
        +dateien
            +nord
                -stadt_nord
    +c:
        +dateien
            -stad_test
    +c:
        +dateien
            +nord
                -stad_sued

However, I want the following structure:

+Layouts
    +c:
        +dateien
        -stad_test
        +nord
            -stad_nord
            -stad_sued

Can you help me here? Nodes that should already exist are not created again. How can I do that.

Thanks

Reiner