This looks like a better solution; however, what is wrong with my syntax because I do not know why it isn't working for me? In my given scenario, it is possible that some of the selection criteria will not be entered, in that case, I may want to search on last name only and ignore first name because nothing was entered...
I am trying to make the selector as flexible as possible because I am trying to dynamically build it e.g. use multiple selectors in one string I could help it. This way I can, in ONE string, create an AND search scenario or an OR search scenario or a combination of both. All things being equal, is there any performance benefit to placing multiple selectors in one string as opposed to using dot notation?