如何在ASP.NET的客户端读取/写入文件

Question

如何从asp.net中的本地文件系统（客户端）读取文件，是否有任何ActiveX要求执行此操作，或者可以不使用它来完成

Answer 1

It cannot be done without extra help like an ActiveX, but I'm not aware of any ready-made solutions. Why do you want to read a local file? Most users will not like this approach...

What are you really trying to do ?? Isn't there another way (eg user uploading the file to your ASP.NET site) to achieve the result you want??

Marc

Answer 2

you can use Javascript and this can be done by using FileSystemObject object

check the following link:

File Handling at Client Side using Javascript

Note:

This object is part of Microsoft ' Scripting Engine, and thus this column is applicable only to Microsoft Windows operating systems .

Answer 3

As Marc Said, ASP.net can't do it.

There are a few options

• Provide a file upload mechanism (most common, easiest)
• Use ActiveX
• Use Silverlight, at least with silverlight you can write in managed code and access the client(instructions for file open and file save )