How would I mimic User.IsInRole()

Question

I have a website thats build with VS 2012 Internet Application ( Simple membership) EF Code First

Updates

I would like

Answer 1

try this way

List AllClinets =entityObject.Clinets .ToList();

Foreach( var check in AllClinets)
{
  if(check.UserTable.RoleTable.RoleName=="Rolename1")
   {
      //This users are Rolename1 
   }
  else
   {
   //other.
   }
}