Quick way to retrieve user information Active Directory

Question

How to query user information from Active Directory? I have code that works, but it\'s really slow. I\'m using C#. This is the code I currently use:

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Answer 1

I'm not sure how much of your "slowness" will be due to the loop you're doing to find entries with particular attribute values, but you can remove this loop by being more specific with your filter. Try this page for some guidance ... Search Filter Syntax