I need to check if a URL is an External url and then if it is a document show the file extension in (ext) etc.
What is the best way to validate this properly in C#?
I know how to check if the URL is an external url, but I am not sure how to validate if the url is actually a document or not.
I would like to not store anything in the application to check against, but for it to be totally dynamic.
Let me know if more explanation is needed and I'll do my best.
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