共用一個基於Callback的無刷新上傳進度條控制項的來源碼。本控件使用的HttpMoudule基於寶玉的一個上傳進度條的sample,這裡封裝為一個控件,方便使用。無需任何程式碼,只需設定web.config,新增HttpModule的引用,再將控制項拖曳到頁面就行。頁面中的檔案保存操作和傳統的asp.net檔案上傳完全一樣。可以設定屬性上傳過程中出錯或上傳成功時跳到其它頁面。相容於IE,Firefox,Opera。其它環境沒測試,不過因為是基於Asp.Net2.0的callback,其他瀏覽器只要支援xmlhttp或iframe就應該支援。
線上示範請至:http: //teddy.cn/test
1<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits=" _Default" %>
2
3<%@ Register Assembly="Framework.Web" Namespace="Ilungasoft.Framework.Web.UI.WebControls"
4 TagPrefix="cc1" %>
5<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
6<html xmlns=" http://www.w3.org/1999/xhtml ">
7<head id="Head1" runat="server">
8 <title>Untitled Page</title>
9</head>
10<body>
11 <form id="form1" runat="server">
12 <div>
13 <asp:FileUpload ID="FileUpload1" runat="server" /><br />
14 <br />
15 <asp:Button ID="Button1" runat="server" Text="Upload" OnClick="Button1_Click" /><br />
16 <br />
17 <cc1:UploadProgressBar ID="UploadProgressBar1" runat="server" UploadButtonName="Button1" UploadErrorRedirectUrl="UploadError.aspx">
18 </cc1:UploadProgressBar>
19 <br />
20 <br />
21 </div>
22 </form>
23</body>
24</html>
Default.aspx.cs
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10
11public partial class _Default : System.Web.UI.Page
12{
13 protected void Page_Load(object sender, EventArgs e)
14 {
15
16 }
17 protected void Button1_Click(object sender, EventArgs e)
18 {
19 FileUpload1.SaveAs(Server.MapPath("test.tmp"));
20 }
21}
是不是沒感覺到和使用該控制項之前相比多了任何程式碼呢? ;-)
Enjoy!