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Hi
I’m a longtime java coder but javascript newbie. got a quick problem i hope someone can hekp with. I am creating a number of pulldown menus, the names of which are created on-the-fly:
[CODE]
for (i = 0; i < outcomes.length; i++) {
…
for (j = 0; j < factors.length; j++) {
document.write (‘<td> <select id=”s’ + i + ‘s’ + j + ‘” name=”n’ + i + ‘s’ + j + ‘” size=1><option value=”0″> </option><option value=”5″>Highly Desirable</option>…</select></td> ‘);
}
}
so basically, if the user has previously chosen to have 3 outcomes and 2 factors, the code above will produce pulldown menus with id’s of s0s0, s0s1, s0s2, s1s0, s1s1, s1s2. As you can see, if the outcome and factor arrays are different lengths, different numbers of pulldown menus will be created.
so – the problem is this. how do i determine what value the user has chosen for a specific pulldown menu? i understand i could write something like this:
[CODE]
document.NavForm.s0s0.options [document.NavForm.s0s0.selectedIndex].value;
to get the value of pulldown menu s0s0. BUT this hardwires the name of the pulldown menu. i won’t know beforehand how many pulldown menus the user has (as they are rendered dynamically) – so i won’t know, for instance, if there is a pulldown menu s3s4. I’ve tried code along these lines, creating a multi-dimensional array then using a for loop to access values thus:
[CODE]
row0dropDowns = [‘s0-s0′,’s0-s1′,’s0-s2′,’s0-s3′,’s0-s4′,’s0-s5′,’s0-s6’];
row1dropDowns = [‘s1-s0′,’s1-s1′,’s1-s2′,’s1-s3′,’s1-s4′,’s1-s5′,’s1-s6’];
…
columnDropDowns = [row0dropDowns, row1dropDowns, …];
document.all[columnDropDowns[m][m]].options[document.all[columnDropDowns[m][m]].selectedIndex].value;
but this gives the error ‘columnDropDowns is null or not an object’ or similar.
so – the big question – how do i access the values of pulldown menus which i have created – and thus named – on the fly? any help gratefully received, and also, if you need any clarification, let me know.
andy