title: Blocking a user in Asp.Net identity 2
body: <p>There was such a problem, I need to block the user. 
  I found the function: "SetLockoutEndDate" and "SetLockoutEnabled". But not one of them, I can not help. The first function works well, it blocks, but only when the user logs out and stopped. I need to lock the user after the message appears. How can we realize the lock member in asp.net identity 2?</p>