我现在datatable中保存的数据是编号     时间                   类型                     数据     百分比
5      2008-12-16          全部事件请求                 0      0.00%
5     2008-12-16          未完成事件请求               0      0.00%
5     2008-12-16          已关闭事件请求               0      0.00%
6     2008-12-17          全部事件请求                 6      3.31%
6     2008-12-17          未完成事件请求               0      0.00%
6     2008-12-17          已关闭事件请求               6      3.31%如何生成如图的效果注意:
编号相同时候只显示一个 并且不显示的那些连所在单元格都不显示  而且要相对于自己的数据居中显示