020. asp.net访问Excel文件

                        <asp:GridView ID="GridView1" runat="server" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" Width="471px">
                            <FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
                            <RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
                            <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
                            <PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
                            <HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
                        </asp:GridView>

 protected void BtnOk_Click(object sender, EventArgs e)
    {
        try
        {
            string strConn;
            strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("学生成绩.xls") + ";" + "Extended Properties=Excel 8.0;";
            OleDbDataAdapter cmd = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strConn);
            DataSet ds = new DataSet();
            cmd.Fill(ds, "Excelstudent");
            this.GridView1.DataSource = ds.Tables["Excelstudent"].DefaultView;
            this.GridView1.DataBind();
            Response.Write("<script language=javascript>alert('恭喜您！Excel文件访问成功！')</script>");
        }
        catch
        {
            Response.Write("<script language=javascript>alert('很遗憾！Excel文件访问失败！')</script>");
        }
    }