分享：Asp.Net上传组件RadUpLoad(带进度条时间显示)（转）

在我的企业管理系统开发的过程中，遇到的最大问题就是大文件的上传了。在asp或者php中要想上传大文件就需借助于组件(这会受到虚拟主机的限制)。但是在asp.net中大文件上传似乎要简单了很多。下面提供下asp.net大文件上传的解决方案。

贴上代码，做.net开发的应该一看就知道什么意思

1.btnSave保存文件提交按钮事件

    /// <summary>
    /// btnSave保存文件提交按钮事件
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnSave_Click(object sender, EventArgs e)
    {
        foreach (UploadedFile file in RadUploadContext.Current.UploadedFiles)
        {
            string Path = Server.MapPath(@"Uploads");

            //如果路径不存在，则创建
            if (System.IO.Directory.Exists(Path) == false)
            {
                System.IO.Directory.CreateDirectory(Path);
            }

            //组合路径，file.GetName()取得文件名
            Path = Path + "/" + file.GetName().ToString();

            //保存
            file.SaveAs(Path, true);
        }
    }

此处代码要在上面增加 using Telerik.WebControls;

2. 前台代码顶部注册组件

<%@ Register TagPrefix="telerik" Namespace="Telerik.QuickStart" Assembly="Telerik.QuickStart" %>
<%@ Register TagPrefix="radU" Namespace="Telerik.WebControls" Assembly="RadUpload.Net2" %

3. Html页面

       <radu:radprogressmanager id="Radprogressmanager1" Width="100%" runat="server" Height="37px" />
        <radu:radprogressarea id="progressArea1" Width="100%" runat="server"></radu:radprogressarea>

        <asp:FileUpload ID="FileUpload1" runat="server" />
        <asp:Button ID="btnSave" runat="server" Text="Button" OnClick="btnSave_Click" />

4.引用DLL为RadUpload.Net2.dll与 Telerik.QuickStart.dll ，RadUpload.Net2.xml都在BIN目录下

5. webconfig配置

<httpModules>



      <add name="RadUploadModule" type="Telerik.WebControls.RadUploadHttpModule, RadUpload.Net2"/>

    </httpModules>

<httpHandlers>

<add verb="*" path="Telerik.RadUploadProgressHandler.aspx" type="Telerik.WebControls.RadUploadProgressHandler, RadUpload.Net2"></add>

  </httpHandlers>



<httpRuntime maxRequestLength="2097151" executionTimeout="3600"/>

Demo示例下载地址

2.引用并声明使用
<%@ Register TagPrefix="radU" Namespace="Telerik.WebControls" Assembly="RadUpload.NET2" %>
<radU:RadProgressManager ID="Radprogressmanager1" runat="server" />
<radU:RadUpload ID="RadUpload1" runat="server" Skin="Web20" InitialFileInputsCount="2"
MaxFileInputsCount="4" AllowedFileExtensions=".doc,.rar" MaxFileSize="10000000"
TargetFolder="~/Upload/kjcx" verwriteExistingFiles="false" />
<asp:Button ID="buttonSubmit" runat="server" CssClass="RadUploadButton" Text="Submit!" />
<radU:RadProgressArea ID="progressArea1" runat="server" />
很多参数的设置参考：http://www.telerik.com/demos/aspnet/Upload/Examples/Overview/DefaultCS.aspx

3.文件大小的控制,如果太大会出现页面报错。
web.config
<httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="8192" requestLengthDiskThreshold="8192" />

报错的帮助文档：
http://www.telerik.com/support/kb/article/b454K-gth-b454T-cee.aspx
http://www.telerik.com/help/radUpload/v2%5FNet2/?UploadingLargeFiles.html

rad control的文档比较少，只有官方的，自己摸索吧