1:          /// <summary>

   2:          /// 和并列

   3:          /// </summary>

   4:          /// <param name="gv">要合并的GridView</param>

   5:          /// <param name="startCol">开始列的索引</param>

   6:          /// <param name="endCol">结束列的索引</param>

   7:          /// <param name="containHeader">是否合并表头，默认不合并</param>

   8:          public static void MergeColumn(GridView gv, int startCol, int endCol, bool containHeader = false)

   9:          {

  10:              if (containHeader)

  11:              {

  12:                  BLRowCells(gv.HeaderRow, startCol, endCol);

  13:              }

  14:              foreach (GridViewRow row in gv.Rows)

  15:              {

  16:                  BLRowCells(row, startCol, endCol);

  17:              }

  18:          }

  19:   

  20:          /// <summary>

  21:          /// 遍历GridViewRow中的单元格

  22:          /// </summary>

  23:          /// <param name="row">要遍历的行</param>

  24:          /// <param name="start">开始索引</param>

  25:          /// <param name="end">结束索引</param>

  26:          private static void BLRowCells(GridViewRow row, int start, int end)

  27:          {

  28:              //从开始索引的下一列开始

  29:              for (int i = start + 1; i <= end; i++)

  30:              {

  31:                  //当前单元格

  32:                  TableCell currCell = row.Cells[i];

  33:                  //前一个单元格

  34:                  TableCell prevCell = row.Cells[i - 1];

  35:                  if (!string.IsNullOrEmpty(currCell.Text) && !string.IsNullOrEmpty(prevCell.Text))

  36:                  {

  37:                      if (currCell.Text == prevCell.Text)

  38:                      {

  39:                          currCell.ColumnSpan = prevCell.ColumnSpan < 1 ? 2 : prevCell.ColumnSpan + 1;

  40:                          prevCell.Visible = false;

  41:                      }

  42:                  }

  43:              }

  44:          }