JSP Combo box question

Question

How can I make a combo box have the ability to add new items in its list? I have an existing combo box that gets its value from an SQL query. How can I let users have the ability to add to that list? If this is not possible with JSP combo boxes, any suggestions as to what field I may use? Thanks

Answer 1

Hello Russ9754!
Might be abit late, but I just read this thread.
Anyway...I think I have what you are looking for.
This code creates a dropdown box with the alternatives of your choice. If none of the options is good enough for the user, he/she can choose "other" and enter a more suitable choice in a pop-up javascriptprompt.
<FORM NAME="formName">
<SELECT NAME="country" onChange="countryOnChange();">
<OPTION VALUE="Albania" selected>- = Albania = -</OPTION>
<OPTION VALUE="Finland">- = Finland = -</OPTION>
<OPTION VALUE="USA">- = USA = -</OPTION>
<OPTION VALUE="Other"> Other... </
OPTION>
</SELECT>
</FORM>
<SCRIPT>
function countryOnChange(){
sel = document.formName.country.selectedIndex;
val = document.formName.country.options[sel].
value;
len = document.formName.country.length;
if (val == "Other"){
var newcountry = prompt("Enter your country.", "");
if (newcountry == null) { return; }
document.formName.country.options[sel].text = newcountry;
document.formName.country.options[sel].value = newcountry;
document.formName.country.length = len +1;
document.formName.country.options[len].text = "Other...";
document.formName.country.options[len].value = "Other";
</SCRIPT>