C#: How to programmatically scroll TreeView control?

Question

Have a good day,

Please advice how can I scroll a .NET TreeView Control programmatically.

It doesn't implemented any public methods to scrolling.

Thanks in advance.

-- Murat

Answer 1

Just select and unselect the lowest item. That should do the trick.

Answer 2

Try this:

treeView1.TopNode = treeView1.Nodes[500];

---

EDIT Maybe more suggestive :-)

    private void Form1_Load(object sender, EventArgs e)
    {
        for (int i = 0; i < 100; i++) {
            TreeNode node = treeView1.Nodes.Add(i.ToString());
            for (int j = 0; j < 10; j++) {
                node.Nodes.Add(j.ToString());
            }
        }
    }

    private void ScrollNode(TreeNode node) {
        treeView1.TopNode = node;
        treeView1.Refresh();
        System.Threading.Thread.Sleep(50);
        if (node.IsExpanded) {
            foreach (TreeNode subNode in node.Nodes)
                ScrollNode(subNode);
        }
    }

    private void button1_Click(object sender, EventArgs e)
    {
        treeView1.Focus();
        foreach (TreeNode node in treeView1.Nodes) {
            ScrollNode(node);
        }
    }

Greets Flo

Answer 3

If you need to scroll to the node:

TreeNode.EnsureVisible();