为什么一定要在后台呢？

通过 gridView1.Columns.Add() 方法加，不过后台添加显得复杂，一般都是先加好， 再在后台控制他们的显示（隐藏）。

GridView72绝技

这代码可不好粘出来，可以自己去CSDN、51ASPX上下载这样的代码学习。

OnRowEditing="GridView1_RowEditing"

...

<asp:CommandField HeaderText="编辑" ShowEditButton="True" />

...

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string sqlstr = "delete from tb_Member where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcon = new SqlConnection(strCon);
        sqlcom = new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update tb_Member set name='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',sex='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',nPlace='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom=new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }

这个是我开始用gridview时经常参考的资料。

还蛮全面的，写的也清楚。给你分享下吧。

http://blog.csdn.net/21aspnet/archive/2007/03/25/1540301.aspx