Get Login User Id

Question

How do I get the logged in user id on the site, then insert it into another table?

Trying to explain better. I have an action called Criapub, which allows the user to write their publications on the site. In my publications table, has the user id, which is mandatory, for me to know who published on the site. My idea, is when the user click to create publications, this field of the table publications, receive the Id of the user logged in, thus allowing the.

Answer 1

As in this reply in Soen: get-the-id-of-the-Current-user-Asp-net-Membership

For a random user you need, do so:

MembershipUser mu = Membership.GetUser("username");
string userId = mu.ProviderUserKey.ToString();

For a logged in user, you can do so:

string userId = Membership.GetUser().ProviderUserKey.ToString();