title: Generate 8 digit uinque id in c#
body: <p>I need to generate 8 digit unique id in c#. On my site a user will register and I need to generate a unique id for him in c# code(I don't want this logic in DB), after inserting the id I need to save it in database.</p>
  
  <p>Edit: I need that numbers to be generated in random manner everytime.</p>