asp.net GridView、DataGrid行单元格自动合并

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GridView原理和DataGrid一样

<pre name="code" class="csharp">

this.dg_list.DataSource = run.GetDataSet(strSQL.ToString());this.dg_list.DataBind();if (this.dg_list.Items.Count > 0){ this.GroupRows(this.dg_list, 0);}

        /// <summary>        /// 合同号单元格自动合并        /// </summary>        /// <param name="gv"></param>        /// <param name="cellNum"></param>        protected void GroupRows(DataGrid dg, int cellNum)        {            int i = 0, rowSpanNum = 1;            while (i < dg.Items.Count - 1)            {                DataGridItem dgi = dg.Items[i];                for (++i; i < dg.Items.Count; i++)                {                    DataGridItem dgiNext = dg.Items[i];                    string TypeName = dgi.Cells[cellNum].Text;                    string Next = dgiNext.Cells[cellNum].Text;                    if (TypeName == Next)                    {                        dgiNext.Cells[cellNum].Visible = false;                        rowSpanNum++;                    }                    else                    {                        dgi.Cells[cellNum].RowSpan = rowSpanNum;                        rowSpanNum = 1;                        break;                    }                    if (i == gv.Rows.Count - 1)                    {                        dgi.Cells[cellNum].RowSpan = rowSpanNum;                    }                }            }        }

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