private void Save_Click(object sender, EventArgs e)
 {
     NewUser = new NewUser
     {
         Password = tbxPassword.Text,
         UserName = tbxUserName.Text
     };
 }
 public User CreateNew(NewUser model)
 {
     using (var contextAccessor = new WriteContextAccessor())
     {
         SHA256Managed sha = new SHA256Managed();
         sha.Initialize();
         var user = new User
         {
             Name = model.UserName,
             PasswordHash = sha.ComputeHash(Encoding.UTF8.GetBytes(model.Password)).ToHexString()
         };
         contextAccessor.ReadWriteContext.Users.Add(user);
         contextAccessor.ReadWriteContext.SaveChanges();
         return user;
     }
 }