Scroll selected TreeView node into view

Question

I have a System.Windows.Forms.TreeView docked inside a panel. I am setting a node selected programmatically. What method or property would I use to have the treeview scroll the selected into view?

Answer 1

I had some issues with node.EnsureVisible() not working for trees with only one level of nodes.

To fix this use the BindingIndex to identify the node selected. Then the node selected will be scrolled in view.

The example shows myTable from a LINQ query.

node.BindingIndex = Convert.ToInt32(mytable.Id);

I hope this helps some of you.

Answer 2

I also had issues with this and figured out that treeview.ExpandAll() ignores the EnsureVisible() effect and avoids the scrolling to the node position.

Just call EnsureVisible() after ExpandAll() if you want a full expanded tree with the scroll on the node you've selected.

Answer 3

node.EnsureVisible();

for example:

if(treeView.SelectedNode != null) treeView.SelectedNode.EnsureVisible();

(see MSDN)