AsyncFileUpload: File Upload in UpdatePanel, ASP.NET AJAX

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AsyncFileUpload: File Upload in UpdatePanel, ASP.NET AJAX

2013年08月01日 ⁄ 综合 ⁄ 共 3011字 ⁄ 字号小中大 ⁄ 评论关闭

AJAX Control Toolkit Release

September 2009 Release
Version 3.0.30930

Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AsyncFileUpload._Default" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>AsyncFileUpload, ASP.NET, AJAX</title> <script type="text/javascript"> var begin; function AsyncFileUpload1_UploadError(sender, args) { document.getElementById('lblUpload').innerText = "对不起，文件“" + args.get_fileName() + "”上传出错，原因：" + args.get_errorMessage() ; } function AsyncFileUpload1_StartUpload(sender, args) { begin=new Date(); document.getElementById('lblUpload').innerText = "文件“" + args.get_fileName() + "”正在上传，请稍等"; } function AsyncFileUpload1_UploadComplete(sender, args) { var t=(new Date()).valueOf() - begin.valueOf(); var speed = Math.round(args.get_length( ) / 1.024 / t); document.getElementById('lblUpload').innerText = "上传 " + args.get_length() + " 字节，用时 " + t + " 毫秒，速度：" + speed + " KB/s"; } </script> </head> <body style="font-size:14px; font-family:宋体"> <form id="form1" runat="server"> <div> <div id="content"> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <table width="100%" border="1" cellspacing="0" cellpadding="5"> <tr> <td>上传文件：</td> <td> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <cc1:AsyncFileUpload ID="AsyncFileUpload1" runat="server" onclientuploadcomplete="AsyncFileUpload1_UploadComplete" onclientuploaderror="AsyncFileUpload1_UploadError" onclientuploadstarted="AsyncFileUpload1_StartUpload" onuploadedcomplete="AsyncFileUpload1_UploadedComplete" /> <asp:Label ID="lblUpload" runat="server"></asp:Label> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="AsyncFileUpload1" EventName="UploadedComplete" /> </Triggers> </asp:UpdatePanel> </td> </tr> <tr> <td> </td> <td> <asp:Label ID="Label1" runat="server" Text="1"></asp:Label>　 <asp:Label ID="Label2" runat="server" Text="左侧数值用于测试是否整个页面被刷新！" ForeColor="Red"></asp:Label> </td> </tr> </table> </div> </div> </form> </body> </html>

Default.aspx.cs

using System; using System.Collections; using System.Configuration; using System.Data; using System.Data.OleDb; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; namespace AsyncFileUpload { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (IsPostBack) { Label1.Text = (int.Parse(Label1.Text) + 1).ToString(); } } protected void AsyncFileUpload1_UploadedComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e) { if (AsyncFileUpload1.HasFile) { AsyncFileUpload1.PostedFile.SaveAs(Server.MapPath("./") + AsyncFileUpload1.FileName); } } } }

若要上传大文件，需要修改 Web.config 的值，

在 system.web 节添加内容

<system.web>
 
 <httpRuntime maxRequestLength="2097151"/>
 ...
</system.web>

【上篇】android Fragments详解七:fragement示例
【下篇】Flex控制外部加载的swf文件[外部swf文件flex版]

作者: martel

该日志由 martel 于11年前发表在综合分类下，最后更新于 2013年08月01日.
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AsyncFileUpload: File Upload in UpdatePanel, ASP.NET AJAX

作者: martel

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