public override bool RoleExists(string roleName)
{
if (string.IsNullOrEmpty(roleName))
{
throw CreateArgumentNullOrEmptyException("roleName");
}
using (BlogUnitOfWork context = new BlogUnitOfWork(new ModelContextInit()))
{
dynamic result = context.Roles.FirstOrDefault(Rl => Rl.RoleName == roleName);
if (result != null)
{
return true;
}
else
{
return false;
}
}
}