老师给我出了个题目是GRIDVIEW的单元格合并

Question

哪位大神知道怎么合并吗？ 
public static void GroupRows(GridView GridView1, int cellNum, int startNum, int endNum)

Answer 1

之前在一个项目中用到的方法，希望对你有帮助 
   /// <summary>
    ///  合并列相同内容的单元格，并添加颜色
    /// </summary>
    /// <param name="GridView1"></param>
    /// <param name="cols"></param>
    public static void GroupCol(GridView GridView1, int cols)
    {
        for (int j = 1; j < cols; j++)
        {
            TableCell oldTc = GridView1.Rows[0].Cells[j];
            for (int i = 1; i < GridView1.Rows.Count; i++)
            {
                TableCell tc = GridView1.Rows[i].Cells[j];
                if (oldTc.Text == "&nbsp;")
                {
                    oldTc = tc;
                }
                else
                {                    if (oldTc.Text == tc.Text)
                    {
                        tc.Visible = false;
                        if (oldTc.RowSpan == 0)
                        {
                            oldTc.RowSpan = 1;
                        }
                        oldTc.RowSpan++;
                        oldTc.VerticalAlign = VerticalAlign.Middle;
                        oldTc.Attributes.Add("style", "background-color:#C8BA0D;");
                    }
                    else
                    {
                        oldTc.Attributes.Add("style", "background-color:#C8BA0D;");
                        oldTc = tc;
                    }
                }
            }
        }
    }