tb
col1         col2        col3
5            aaa          0
5.1          bbb          5
5.2          ccc          5
5.3          ddd          5
5.2.1        eee          5.2
5.3.1        fff          5.3
5.2.1.1      ggg          5.2.1表 col1 是主键..
现在在treeview中样式
5-aaa
|__5.1bbb
|__5.2ccc
       |___5.2.1eee
               |____5.2.1.1ggg
|__5.3ddd
        |__5.3.fff这个表能在Treeview显示为上图所示的样式吗