I am not a JSP guru but maybe this helps.
Depending on the container you have, you can get different results on the
generated class file. Try to locate the generated class file on your
directory structure and follow the code to see if you find what could be
wrong.
-----Original Message-----
From: Awad Katherin [mailto:[EMAIL PROTECTED]]
Sent: Thursday, July 13, 2000 7:59 PM
To: [EMAIL PROTECTED]
Subject: Calling an Enumeration in the java file from the JSP page
Hi,
I'm trying to call a function in my java file from my JSP page in
order to populate a drop-down box. The java function returns an
enumeration which I go through to select the appropriate parts to
display.
However, it is not populating the drop down at all - it doesn't even
get in the while loop - so it must be falling over on
e.hasMoreElements(). I tried writing a main function in the java file
with exactly the same code to test it and it works perfectly.
What am I doing wrong in the JSP page? Here are snippets of the code:
JSP Page
--------
<td><b>Label:</b></td><td><select name="dropdown" width="45">
<option value=" " selected>Select an Option
<%
Enumeration e = DBClass.getPopulate();
while (e.hasMoreElements()) {
Someclass myclass = (Someclass) e.nextElement();
%>
<option value="<%=myclass.getID()%>"><%=myclass.getSummary()%>
<% }
%>
</select></td>
Java Page - function that is called within class "DBClass"
----------------------------------------------------------
public static Enumeration getPopulate()
{
SList holder = new SList();
ResultSet rs = null;
try {
// connect to database in here
try {
// RS set here using query execution
while (rs.next()) {
holder.add(new Someclass(rs.getString(1),
rs.getString(2), rs.getString(3)));
}
} catch (SQLException se) {
se.printStackTrace();
}
// close connection here
} catch (Exception e) {
e.printStackTrace();
}
return holder.elements();
}
Thanks for your time.
Katherin.
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