TreeView 展开,折叠

private void button1_Click(object sender, System.EventArgs e)
{
  
if (treeView1.SelectedNode.IsExpanded)
   {
      treeView1.SelectedNode.Collapse();
      MessageBox.Show(treeView1.SelectedNode.Text
+
       
" tree node collapsed.");
   }
  
else
   {
      treeView1.SelectedNode.Expand();
      MessageBox.Show(treeView1.SelectedNode.Text
+
       
" tree node expanded.");
   }
}


posted @ 2009-08-17 22:45  oraclejava  阅读(324)  评论(0)    收藏  举报