可能是学习能力有限吧，我从昨晚到今天，累积起来起码五六个小时，才终于弄懂了这个Gridview的编辑。毕竟找来的代码都是没有注释和说明的。

我想记录下来，也希望后来的新丁能少走弯路。

 

　　

protected void Page_Load(object sender, EventArgs e)        {            if (!IsPostBack)            {                BindData();            }        }        private void BindData()        {            string sql = string.Format("select * from Student");            DataTable dt = SqlHelper.ExctuteDataTable(sql);            GridView1.DataSource = dt;            GridView1.GridLines = GridLines.Both;            GridView1.RowStyle.HorizontalAlign = HorizontalAlign.Center;//单元格文字居中            GridView1.DataBind();                        GridView1.EditRowStyle.ForeColor = Color.Red;        }        protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)        {            GridView1.EditIndex = e.NewEditIndex;            BindData();        }        protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)        {            /*先获得所要编辑的行的第0号单元格里的第一个子控件，转成TextBox类型然后取值*/            int Sid = int.Parse(((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text.ToString().Trim());                        /*FindControl里的参数填控件的id，但我们需要先获取这个id，所以不推荐这种用法。*/            //string Sname = (GridView1.Rows[e.RowIndex].Cells[0].FindControl("Sname") as TextBox).Text;            string Sname = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text.ToString().Trim();                        string Sage = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text.ToString().Trim();            string Sphone = ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text.ToString().Trim();            string Spwd = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text.ToString().Trim();            string sql = string.Format("update Student set Sid={0},Sname='{1}',Sage='{2}',Sphone='{3}',Spwd='{4}'where Sid={5}",                 Sid, Sname, Sage, Sphone, Spwd, int.Parse(GridView1.DataKeys[e.RowIndex].Value.ToString()));            SqlHelper.ExecuteNonQuery(sql);        }        protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)        {            GridView1.EditIndex = -1;            BindData();        }