本文主讲合并GridView的单元格，具体功能是：合并某一行的所有列，合并一行中的几列，合并某一列所有行，合并某一列中的某些行，下面是相应的方法代码，并有参数说明：
       #region 合并单元格 合并某一行的所有列
        ///   <summary>  
        ///   合并GridView中某行相同信息的行（单元格）
        ///   </summary>  
        ///   <param   name="GridView1">GridView对象</param>  
        ///   <param   name="cellNum">需要合并的行</param>
        public static void GroupRow(GridView GridView1, int rows)
        {
            TableCell oldTc = GridView1.Rows[rows].Cells[0];
            for (int i = 1; i < GridView1.Rows[rows].Cells.Count; i++)
            {
                TableCell tc = GridView1.Rows[rows].Cells[i];   //Cells[0]就是你要合并的列
                if (oldTc.Text == tc.Text)
                {
                    tc.Visible = false;
                    if (oldTc.ColumnSpan == 0)
                    {
                        oldTc.ColumnSpan = 1;
                    }
                    oldTc.ColumnSpan++;
                    oldTc.VerticalAlign = VerticalAlign.Middle;
                }
                else
                {
                    oldTc = tc;
                }
            }
        }
        #endregion

        #region 合并单元格 合并一行中的几列
        /// <summary>
        /// 合并单元格 合并一行中的几列
        /// </summary>
        /// <param name="GridView1">GridView ID</param>
        /// <param name="rows">行</param>
        /// <param name="sCol">开始列</param>
        /// <param name="eCol">结束列</param>
        public static void GroupRow(GridView GridView1, int rows,int sCol,int eCol)
        {
             TableCell oldTc = GridView1.Rows[rows].Cells[sCol];
            for (int i = 1; i < eCol - sCol; i++)
            {
                TableCell tc = GridView1.Rows[rows].Cells[i + sCol];   //Cells[0]就是你要合并的列
                tc.Visible = false;
                if (oldTc.ColumnSpan == 0)
                {
                   oldTc.ColumnSpan = 1;
                }
                oldTc.ColumnSpan++;
                oldTc.VerticalAlign = VerticalAlign.Middle;
            }
        }
        #endregion

        #region 合并单元格 合并某一列所有行
        /// <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;
                }
            }
        }
        #endregion