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Asked: 2026-05-10T21:11:55+00:00

How can I maintain the scroll position of a treeview control in .NET application?

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How can I maintain the scroll position of a treeview control in .NET application? For example, I have a treeview control and go through a process of adding various nodes to it tacking them on to the bottom. During this process, I can scroll through the treeview and view different nodes. The problem is when the process completes, the treeview scrolls to the very bottom.

It appears that calling treenode.Expand() is what is throwing me off track here. When a parent node is expanded, it gets the focus.

Is there a way around this? If I’m looking at a specific node while the process is running, I don’t want it to jump around on me when the process is done.

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1 Answer

  1. I think I figured it out:

    1. Get the node at the top of the treeview.
    2. Expand the parent node.
    3. Make the node that was previously at the top visible.
    If treeNodeParent.IsExpanded = False Then     Dim currentNode As TreeNode = TreeViewHosts.GetNodeAt(0, 0)     treeNodeParent.Expand()     currentNode.EnsureVisible() End If

    Is the a better way to do this?

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