WebClient.DownloadFile在本地工作，但不在服务器WS2008 R2 IIS7上

Question

I am using below

var inputPath = "file:" + fileName.Replace(@"\", @"/");
var uri = new Uri(inputPath);
var client = new WebClient();
client.DownloadFile(uri, downloadPath);

The "file://*" with filename opens in browser directly.

The file is housed on the server and able to be accessed and download when run from DEBUG in VS2012 using my localhost but when I type in the browser to connect to the DEV server version it will not download the file.

The app pool is running under my name because I cannot get the app pool to work under AppPoolIdentity. I have Full Control of folder path for the file location. So does ANONYMOUS and Everyone just in case all of this was a security issue.

Since its a DEV box I have even removed the Firewall completely to see if the Firewall was blocking the download.

When I run from the Chrome browser and F12 I can see that the section of code has a Status Code of 200 'OK' when the DownloadFile runs, so there is no error it just doesn't save to my downloadPath location.

Please advise if you have seen this before.

Answer 1

Thid might be a proxy settings problem:

<configuration>
 <system.net>
  <defaultProxy>
   <proxy
    usesystemdefaults="true"
    proxyaddress="http://192.168.1.10:3128"
    bypassonlocal="true"
   />
   <bypasslist
    <add address="[a-z]+\.contoso\.com" />
   </bypasslist>
  </defaultProxy>
 </system.net>

see settings here

Or you could examine the problem using fiddler .

Answer 2

After tons of looking I found a work around that may be obvious to others. I was trying to use ajax calls to call the Action to download the file. This seemed to just sit but there was no error so in F12 once I clicked on the call that showed in the logs the file downloaded.

I have moved my process to use href for "http://ip/website/action?fileName=" + fileName

This uses the default download functions of the browser you are in so it works for Chrome and IE. I have not tried Firefox yet.