From database to drop down box

Question

Hi all,
Suppose I have the following
String query ="Select name, number from Person";
I want to put all the "names" in a drop down box and all the "numbers" in a separate drop down box. When I do this:
while(rs.next()){
<select="person" onchange="showSelection">
<option value="<%=rs.getString("name")%>"><%=rs.getString("name")%></option></select>
I only get the value of the first name in my table. Can anyone help me?

Answer 1

Hi
I think you need to do some order. my suggestion is to create an Object that contains name and number like this:public class MyClass {
     String name;
     int number;
     public MyClass(String n,int num){
          setName(n);
          setNumber(num);
     //set and get methods for the data members...
}next, roll over the ResultSet and create MyClass object each time and add it to a Vector or something like that. usually a drop down box displays many times and it will be very bad if you will query the data base each time you want to display it, thats why i suggest you to save this Vector in a bean or somewhere else (of course, if the data is static).
than display the vector content like this:<select name="person" onchange="showSelection">
<%     Enumeration e=vec.elements();
     while(e.hasMoreElements()){
          MyClass m=(MyClass)e.nextElement();
%>          <option value="<%=m.getName();%>"><%=m.getName();%></option>
<%     }%>
</select>
<%     e=vec.elements();
%><select name="number" onchange="showSelection">
<%     while(vec.hasNext()){
          MyClass m=(MyClass)vec.next();
%>          <option value="<%=m.getNumber();%>"><%=m.getNumber();%></option>
<%     }%>
</select>pay attention on how you wrote the select tag: <select="person"...
and not: <select name="person"...
hope it helps
mamtz
BTW
think of using struts and custom tags in jsp it will much easier to do this!!!