Oracle Waveset 8.1.1 Deployment Reference

ProcedureTo Define a Hidden Form Field

  1. Select Hidden from the Display Class menu.

  2. Click OK.

    The Hidden display class corresponds to the <input type=hidden’/> HTML component. This component supports only single-valued data types because there is no way to reliably serialize and deserialize multi-valued data types.

    If you have a List that you want to render it as a string, you must explicitly convert it to a String, as shown in the following example:


    <Field name=’testHiddenFieldList’ >
       <Display class=’Hidden’/ >
       <Derivation>
         <invoke name=’toString’>
           <List>
             <String>aaaa</String> <String>bbbb</String>
           </List>
         </invoke>
       </Derivation>
    </Field>