Using enums in a form with select elements

Question

Hi
I am using an enum to define a discrete list of measurement units:
public enum dUnits {
        METERS,
        FEETS,
        INCHES,
        CENTIMETERS
    }I also have a form with a list that takes the option values from the enum:
        <select size="1" name="E">
        <%
            for (Class.dUnits U : Class.dUnits.values()) {
               %>
                 <option value="<%=U%>"  <%=U==bound_bean.value()?"selected=\"true\"":""%>>
                    <%=U%>
                 </option><%
        %>
        </select>E is the field on the bound_bean object. This works without problem, and when I run the JSP page, it works with the initialized values of bound_bean.E (the default value is METERS, the generated code is this:
             <select size="1" name="E">
                 <option value="METERS" selected="true">
                    METERS
                 </option>
                 <option value="FEETS" >
                    FEETS
                 </option>
                 <option value="INCHES" >
                    INCHES
                 </option>
                 <option value="CENTIMETERS" >
                    CENTIMETERS
                 </option>
        </select>However, when I submit the page with different values on the select box, the values are never being sent to the bean, and it uses only the initialized value.
Any help will be appreciated.
The program is a little long to post, but If someone is interested in taking a look, please let me know.
Best regards,

Answer 1

I'm using UseBean SetProperties to set the values to the Bean, all the other fields are being populated as expected.
I have getE and setE
public void setE(Class.dUnits E) {
        this.E = E;
public Class.dUnits getE() {
        return E;
    }If I call request.getParameter("E"), I get the value that is selected/expected as a String (i.e. "INCHES")... maybe that's the part where everything falls apart, I think the setE is not able to run due to the type differences. but I don't know what to do next. Overloading setE seems like a good idea, but I just tried that and didn't work.
    public void setE(String E) {
        this.E = Class.dUnits.valueOf(E);
    }