Read actual extension of a file [duplicate] - asp.net

This question already has answers here:
How to find the extension of a file in C#?
(14 answers)
Closed 4 years ago.
To validate file upload types used
Path.GetExtension(Filename) to return the file extension.
But if a user change file extension to different one and try to upload, how can I read the actual extension of the file

There exists Mime Detective which can get the mime type of a file by looking at its headers.

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Fetching links to PDF files from an HTML file in R [duplicate]

This question already has answers here:
Read list of file names from web into R
(4 answers)
Retrieve the list of files from a URL
(1 answer)
Closed 2 years ago.
I am currently attempting to write a program in R, which can download the PDF files uploaded to the website https://www.emmi-benchmarks.eu/euribor-org/euribor-intraday-re-fixing.html
If we click into the website right now, we can see 3 pdf files at the bottom of the page. I'd like my program to be able to download these 3 files without any manual work. Would this be possible?
I'm able to download the PDF files one by one and fetch the wanted information when I have the link to the respective file - but the name of these files may be updated and new ones may be added, so manually entering the links is not a long term solution if it can be avoided.
Thanks in advance!

How to include all calsses with additional compiler options in Flex [duplicate]

This question already exists:
Closed 10 years ago.
Possible Duplicate:
How to include additional compiler options“includes” and “include-libraries”?
I want to include in my flex project a custom package that contains hundreds of fxg objects using the additional compiler options. Which specific option can i use an how i should I declare?
-includes for MXMLC and -includes-classes for COMPC.

what's the difference between .db and sqlite3 extensions? [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
SQlite extension name
The title is definitely the question. So, when I start to manage an sqlite database, so I am getting the options how to save file on disk. I mean the extension .db or .sqlite(3). So, is the some difference, restrictions or other issues.
Thank you in advance.
From my past sqlite naming i used .db extension but when i read this post below i change it to .sqlite3db. i add db to specify that the file is an sqlite3 database.
SQlite extension name
and check the answer of Brian Campbell
Hope this help.
Regards

VS2010 delete unused images/files [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Find Unused Resources in a .NET Solution
In a webapplication we have a lot of images and some of them are not used/referenced anymore. Is there way (tool or something) to get a list of all these unused files or/and delete them?
A manual approach - If you have Resharper installed, you can right-click and choose "Find Usages" this will look in your project for a reference to the selected image.

Flex 3 + Flash Player 10 FileReference save function [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
help, losing extension when use FileReference download
Hi!
I'm having an issue that looks common when using the FileReference class in FP10 when saving a file.
The whole thing works fine as long as I don't change the default filename. If I do, then I loose the extension of the file... which is annoying >_<
I haven't found any "acceptable" workaround, but the posts I've seen are from a couple of months already. So I'm inquiring hoping that something's been done regarding this issue since then =)
Regards,
BS_C3
The only thing i am aware of that you can do is: After succesfull saving check the filename and display a warning if the user used the wrong/no extension.

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