list box - 1st item alone OR mult items (not including the 1st)
If user selects 1st item in list box, I want to deselect all others. But, if the user selects the 2nd, 3rd, or 4th item I want to deselect 1st item only.
In other words, valid choices are:
1) 1st item only ("all")
2) one or more of the 2nd, 3rd, or 4th items
I think my main question is how to figure out which item the user just selected.
Did s/he just pick the 1st, so I should deselect the others?
Did s/he just pick the 2nd, so I should deselect the 1st?
Any help appreciated.
If user selects 1st item in list box, I want to deselect all others. But, if the user selects the 2nd, 3rd, or 4th item I want to deselect 1st item only.
In other words, valid choices are:
1) 1st item only ("all")
2) one or more of the 2nd, 3rd, or 4th items
I think my main question is how to figure out which item the user just selected.
Did s/he just pick the 1st, so I should deselect the others?
Did s/he just pick the 2nd, so I should deselect the 1st?
Any help appreciated.