一样的Cell合併成一个
本来

目标

开始

public bool isSearch = false;

在bind之前将isSearch=true;

拉一个GridView ID为GridView1,在事件PreRender,加入以下code

 protected void GridView1_PreRender(object sender, EventArgs e)        {            if (isSearch == false) return;            isSearch = false;                 for (int i = gvR.DataItemIndex + 1; i < this.GridView1.Rows.Count; i++)                {                    //与下一列栏位值相等;                    if (gvR.Cells[0].Text.Trim() == this.GridView1.Rows[i].Cells[0].Text.Trim())                    {                        gvR.Cells[0].RowSpan = gvR.Cells[0].RowSpan == 0 ? gvR.Cells[0].RowSpan = 2 : gvR.Cells[0].RowSpan += 1;                        this.GridView1.Rows[i].Cells[0].Visible = false;                    }                    else                    {                        break;                    }                }            }        }   

如果col是样板,就要用findeControl取值
```
protected void GridView1_PreRender(object sender, EventArgs e)
{
if (isSearch == false) return;
isSearch = false;

        foreach (GridViewRow gvR in this.GridView1.Rows)        {            for (int i = gvR.DataItemIndex + 1; i < this.GridView1.Rows.Count; i++)                            {                string x1 =  ((Label)gvR.FindControl("col1")).Text;                string x2 = ((Label)this.GridView1.Rows[i].FindControl("col1")).Text;                //与下一列栏位值相等;                if (x1== x2)                {                    gvR.Cells[0].RowSpan = gvR.Cells[0].RowSpan == 0 ? gvR.Cells[0].RowSpan = 2 : gvR.Cells[0].RowSpan += 1;                    this.GridView1.Rows[i].Cells[0].Visible = false;                }                else                {                    break;                }            }        }    }