File Upload: *.CSV

[King]

Hello,

I would like to check to see if the file that I am uploading to my
server is of type CSV. I am currently doing that with the following
snippet:

HttpPostedFile file = UploadBox.PostedFile;
if (file.ContentType.Equals("application/vnd.excel"))
{
do stuff;
}

This works when uploading the file from my development computer to my
development computer. However, when I try this from another computer
on my network, it doesn't work. I used:

Response.Write(file.ContentType);

Uploading from my development computer I got:

application/vnd.excel

Uploading from my other computer on the network I got:

application/octet-stream

I don't understand why this is happening. They are the EXACT same
file as I am uploading it from a network drive.


Thank you,
King

 

[Guest]

Unfortunately, your code (at the server side) cannot control what
Content-Type header is set by the client POST-ing the file. You could check
for a .csv file extension, or a more robust approach would simply be to parse
the file (which I assume you would need to do anyway) and ensure there are no
exceptions.
-- Peter
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