如何让treeView的节点在单击时就展开？

Question

(WinForm)
treeView 在默认情况下要双击才能展开结，我想单击就展开结点。请问该怎么做？

Answer 1

treeView.MouseClick += new MouseEventHandle(OnTreeViewMouseClick);private void OnTreeViewMouseClick(object sender, MouseEventArgs e)
{
   treeView.GetNodeAt(e.Location).Expand();
}

Answer 2

private void treeView_AfterSelect(object sender, TreeViewEventArgs e)
{
 
    treeView.SelectedNode.Expand();}

Answer 3

private   void   treeView_AfterSelect(object   sender,   TreeViewEventArgs   e) 
{ 
  
        e.Node.Expand();
}