>> if (this.lsbUsers.SelectedIndex > - 1 && this.LsbRoles.SelectedIndex > - 1) seems to work in my tests :)
>>
>>I guess I over-complicated the issue yesterday based on the original test code. But why the original developer would not use this simple test then?
>
>For the same reason you didn't ... they didn't know the correct way to do it. <g>
>
>~~Bonnie


Here is a MS sample of doing it:

int[] user_indices = UsersListBox.GetSelectedIndices();

  if (user_indices.Length == 0)
  {
    Msg.Text = "Please select one or more users.";
    return;
  }

from http://msdn2.microsoft.com/en-us/library/system.web.security.roles.adduserstoroles(VS.80).aspx

But your way works too. <g>