合并GridView中某列相同信息的行

1 /// <summary>
2 /// 合并GridView中某列相同信息的行（单元格） 
3 /// </summary>
4 /// <param name="GridView1">GridView</param>
5 /// <param name="cellNum">第几列</param>
6 public static void GroupRows(GridView GridView1, int cellNum)
7 {
8     int i = 0, rowSpanNum = 1;
9     while (i < GridView1.Rows.Count - 1)
10     {
11         GridViewRow gvr = GridView1.Rows[i];
12 
13         for (++i; i < GridView1.Rows.Count; i++)
14         {
15 GridViewRow gvrNext = GridView1.Rows[i];
16             if (gvr.Cells[cellNum].Text == gvrNext.Cells[cellNum].Text)
17             {
18                 gvrNext.Cells[cellNum].Visible = false;
19                 rowSpanNum++;
20             }
21             else
22             {
23                 gvr.Cells[cellNum].RowSpan = rowSpanNum;
24                 rowSpanNum = 1;
25                 break;
26             }
27 
28             if (i == GridView1.Rows.Count - 1)
29             {
30                 gvr.Cells[cellNum].RowSpan = rowSpanNum;
31             }
32         }
33     }
34 }
35 
36