C#生成单个文件

 protected void Button1_Click(object sender, System.EventArgs e)
    {
        string PageUrl = "http://tech.zgbfw.com/default.aspx";
        //你要生成的ASPX文件
        System.Net.WebRequest request = System.Net.WebRequest.Create(PageUrl);
        System.Net.WebResponse response = request.GetResponse();
        System.IO.Stream resStream = response.GetResponseStream();
        System.IO.StreamReader sr = new System.IO.StreamReader(resStream, System.Text.Encoding.Default);
        ContentHtml.Text = sr.ReadToEnd();
        resStream.Close();
        sr.Close();
        //string filename = System.DateTime.Now.ToString("yyyyMMddHHmmss");
        System.IO.StreamWriter sw = new System.IO.StreamWriter(Server.MapPath("../index.htm"), false, System.Text.Encoding.Default); //最后一个参数视实际需要 

        sw.WriteLine(ContentHtml.Text);
        sw.Close();
        this.Label1.Visible = true;
        //Response.WriteFile("生成成功，路径：");
    }

<asp:TextBox ID="TextBox1" runat="server" Width="214px" ReadOnly="true">../default.aspx</asp:TextBox>
        <asp:TextBox ID="ContentHtml" runat="server" Width="214px" Visible="false">../default.aspx</asp:TextBox> 
        <asp:Button ID="Button1" runat="server" Text="生成首页html" OnClick="Button1_Click" />
       <asp:Label ID="Label1" runat="server" Visible="false"
            Text="生成首页成功" ForeColor="red"></asp:Label>