如何设置下载应用程序的内容长度.. [英] How do I set content length for download application..

问题描述

我正在使用列表框来显示d个文件。现在我想从列表框中下载文件。

I'm using list box to display d files. Now I want to download the file from list box.

string Files = ListBox1.SelectedValue;    
Response.Clear();
Response.BufferOutput = true;
Response.ContentType = "application/exe";
Response.AddHeader("Content-Length", filelength);
Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(Files));            
Response.End();

推荐答案

假设您的exe文件位于Web应用程序根文件夹内的Downloads文件夹中，然后尝试

assume your exe file located in Downloads folder inside your web application root folder, then try

string fileName =istBox1.SelectedValue;
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
Response.TransmitFile(Server.MapPath("~/downloads/" + fileName));
Response.End();

我的文件在服务器中。我正在显示从服务器到列表框的文件。现在我想从列表框中下载它。

文件正在下载，但文件的大小是0字节..

My files are in server. I'm displaying the files from server to list box. Now I want to download it from list box.
the files are downloading but the size of the file is 0 byte..

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