c# - 确认文件已下载

Question

有没有办法确认用户已经下载了文件？ (与拒绝下载或中途取消下载相反？)最好在 c# 代码隐藏中。

使用时:Response.Write(...); .

Answer 1

您可以使用 Response.IsClientConnected 来检查客户端是否仍然连接。

来自MSDN

This property enables you greater control over circumstances where the client may have reset the connection to the server. For example, if a long period of time has elapsed between when a client request was made and when the server responded, it may be beneficial to make sure the client is still connected before continuing to process the script.

在使用 Response.Write 写入响应后，执行此命令以检查客户端是否已连接，如果为真则表示文件已写入响应/已下载。

http://msdn.microsoft.com/en-us/library/ms525453(v=vs.90).aspx