>Why not set a breakpoint preceeded with
>

>// if in vs2005 replace var by bool
>
>var selnull = this.lsbUsers.SelectedItem != null;
>var textempty = this.lsbUsers.Text != string.Empty;
>var lsbrolesnull = is.LsbRoles.SelectedValue != null;
>
>// put the break here
>// examine the 3 variables
>
>// your if( statement follows
>if ((this ....
>
>

Thanks, I'm going to try it this way. My gut it telling me that the problem is that the string is empty and not null.