How Do I Download Any File From Database With Common Response.Contentype In Asp.Net?

Question

0.00/5 (No votes)

See more:

I am downloading file from the database by carrying out the extension of the file and checking the extension with if-else and with different response.contenttype....according to extension.
here is my code:

C#

if (ext == ".pdf")
           {
               Response.ContentType = "application/pdf";
           }

           else if (ext == ".doc" || ext == ".rtf" || ext == ".docx")
           {
               Response.ContentType = "Application/msword";
           }

           else if (ext == ".txt")
           {
               Response.ContentType = "text/Plain";
           }

           else if (ext == ".rar")
           {
               Response.ContentType = "Application/x-rar-compressed";
           }
           else if (ext == ".jpeg" || ext==".jpg")
           {
               Response.ContentType = "image/jpeg";
           }
           else
           {
               Response.ContentType = "Application/octetstream";
           }

           Response.AddHeader("Content-disposition", "attachment; filename=" + filename);
           Response.BinaryWrite(byteimg);
           Response.Flush();
           Response.End();
       }

So, instead of declaring response.contenttype according to extension each and every time at the time of downloading, i want the common response.contentype to exclude all these one's/.....please help..
Thanks..:)

Posted 8-Mar-14 2:33am

Pranav-BiTwiser

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Christian Graus · Answer 1 · 2014-03-14T16:45:00

Solution 1

You want to change how the entire internet works. You can zip the files, and thus set the type to be a zip, but otherwise, you need to tell the browser what the content type is, so it knows what to do with it.

Posted 14-Mar-14 16:45pm

Christian Graus

Dave Kreskowiak · Answer 2 · 2014-03-14T18:22:00

Solution 2

There are generic "octet" MIME types, but they are hardly useful in your case.

Did it dawn on you that there must be a better way than using if/else constructs? You could just put the extensions and MIME types in a Dictionary and just do a lookup of the extension you're sending to the client to get it's an appropriate MIME type.

Posted 14-Mar-14 18:22pm

Dave Kreskowiak

Comments

Pranav-BiTwiser 15-Mar-14 2:17am

what if i use...
Response.ContentType = "Application/octetstream";

Dave Kreskowiak 15-Mar-14 9:57am

Yes, you can. What will happen on the browser side is that the user will be prompted where they want to save the file. It will not open in the browser because the MIME type is what tells the browser how to handle the file.