主从表显示问题！！！

 
_______________________________________________________  
单号    客户名称   ¦货号         颜色           数量   
________________________________________________________
                     1          红             10 
                  _____________________________________
001    aaaa       2          蓝             20 
________________________________________________________ 
                 1          绿             5 
                 ______________________________________
                 3          红             8  
                 ______________________________________            
002    aaaa       4          红             5 
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表格的线都是实线，竖的画不出来了，如何设置啊？我用GridView可以取出数据，但不能显示出这样的样式