Question

I need to have a TreeView with only vertical scrollbar.

I tried this but it doesnt work, the resulting scrollbar doesnt do anything at all.

I tried the opposite (scrollable to true and disable horizontal scrollbar with that user32.dll function) – it doesnt work, when i add long enough stuff to the TreeView the scrollbar shows again…

Answer 1

You can try turning on the TVS_NOHSCROLL window style on the treeview control. To do so you have to extend the standard TreeView control with a custom TreeView like this one :

public class NoHScrollTree : TreeView {
protected override CreateParams CreateParams {
get {
    CreateParams cp = base.CreateParams;
    cp.Style |= 0x8000; // TVS_NOHSCROLL
    return cp;
}
} }