C# 合并GriewView相同列的小例子

 /// <summary>
    /// 合并gridview中某列相同信息的行（单元格）
    /// </summary>
    /// <param name="gridview1"></param>
    /// <param name="cellnum"></param>
    public static void groupcol(gridview gridview1, int cols)
    {
        if (gridview1.rows.count < 1 || cols > gridview1.rows[0].cells.count - 1)
        {
            return;
        }
        tablecell oldtc = gridview1.rows[0].cells[cols];
        for (int i = 1; i < gridview1.rows.count; i++)
        {
            tablecell tc = gridview1.rows[i].cells[cols];
            if (oldtc.text == tc.text)
            {
                tc.visible = false;
                if (oldtc.rowspan == 0)
                {
                    oldtc.rowspan = 1;
                }
                oldtc.rowspan++;
                oldtc.verticalalign = verticalalign.middle;
            }
            else
            {
                oldtc = tc;
            }
        }
    }