c#中winform方式中給treeview節點加圖檔

1  在form中增加一個imagelist

2 設定treeview的imagelist屬性

3 代碼如下

private void treeView1_AfterCollapse(object sender, TreeViewEventArgs e)

        {

            if (e.Node == treeView1.Nodes[0])

            {

                return;

            }

            e.Node.SelectedImageIndex = 1;

            e.Node.ImageIndex = 1;

        }

        private void treeView1_AfterExpand(object sender, TreeViewEventArgs e)

        {

            if (e.Node == treeView1.Nodes[0])

            {

                return;

            }

            e.Node.SelectedImageIndex = 2;

            e.Node.ImageIndex = 2;

        }