Get the MimeType(Content Type) of a file

Question

How will I get the Mime Type or Content Type of a Specific file through its file extension? This program is developed in MVC3 Razor Syntax, the code looks like this:

if (System.IO.File.Exists(file))
            return File(file, "application/pdf", id);
        else
            return RedirectToAction("Index");

I want to change the application/pdf to a dynamic value such that it would supply the MIME type through the id or the filename that is sent to the controller.

[c# - Using .NET, how can you find the mime type of a file based on the file signature not the extension - Stack Overflow][1] How about FindMimeFromData API? [1]: http://stackoverflow.com/questions/58510/using-net-how-can-you-find-the-mime-type-of-a-file-based-on-the-file-signature — takepara, Jun 19 '12 at 02:51
Here is a similar question: http://stackoverflow.com/questions/1612767/file-extensions-and-mime-types-in-net — maximpa, Nov 22 '12 at 22:40
In .Net 4.5 you could use `System.Web.MimeMapping.GetMimeMapping()` — maximpa, Nov 22 '12 at 23:20

score 1 · Answer 1 · edited Sep 19 '12 at 16:16

1

You could look up the registry value at HKCR\<file extension>\Content Type. This value doesn't exist for all file types, but probably does for all the file types you're interested in.

edited Sep 19 '12 at 16:16

JSK NS

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answered Jun 18 '12 at 07:26

Andrew Cooper

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Get the MimeType(Content Type) of a file

1 Answers1