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copied!<p>Is your reason for this to save a database call everytime you need the UserId? If so, when I'm using the ASP.NET MembershipProvider, I usually either do a custom provider that allows me to cache that call, or a utility method that I can cache.</p> <p>If you're thinking of putting it in the Profile, I don't see much reason for doing so, especially as it also will still require a database call and unless you are using a custom profile provider there, it has the added processing of parsing out the UserId.</p> <p>If you're wondering why they did not implement a GetUserId method, it's simply because you're not always guaranteed that that user id will be a GUID as in the included provider.</p> <p>EDIT:</p> <p>See <a href="http://weblogs.asp.net/scottgu/archive/2006/04/13/442772.aspx" rel="noreferrer">ScottGu's article on providers</a> which provides a <a href="http://download.microsoft.com/download/a/b/3/ab3c284b-dc9a-473d-b7e3-33bacfcc8e98/ProviderToolkitSamples.msi" rel="noreferrer">link to downloading the actual source code for i.e. SqlMembershipProvider</a>. </p> <p>But the simplest thing to do really is a GetUserId() method in your user object, or utility class, where you get the UserId from cache/session if there, otherwise hit the database, cache it by username (or store in session), and return it.</p> <p>For something more to consider (but be very careful because of cookie size restrictions): <a href="http://www.eggheadcafe.com/tutorials/aspnet/33d4018a-03cf-48aa-9b68-82ba27aa6af9/forms-auth-membership-r.aspx" rel="noreferrer">Forms Auth: Membership, Roles and Profile with no Providers and no Session</a></p>

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