<?xml version="1.0" encoding="utf-8"?>
<toc label="DAL2 Overview">
               <topic label="Extended DAL (DAL2)"
          href="help/html/progguide/functions_dal/dal2_overview.htm"/>
               <topic label="DAL2 Field hooks">
                  <topic label="DAL2 Field hooks"
             href="help/html/progguide/functions_dal/dal2_field_hooks.htm"/>
                  <topic label="field.is.never.applicable()"
             href="help/html/progguide/functions_dal/field.is.never.applicable.htm"/>
                  <topic label="field.is.applicable()"
             href="help/html/progguide/functions_dal/field.is.applicable.htm"/>
                  <topic label="field.is.readonly()"
             href="help/html/progguide/functions_dal/field.is.readonly.htm"/>
                  <topic label="field.is.derived()"
             href="help/html/progguide/functions_dal/field.is.derived.htm"/>
                  <topic label="field.is.mandatory()"
             href="help/html/progguide/functions_dal/field.is.mandatory.htm"/>
                  <topic label="field.is.valid()"
             href="help/html/progguide/functions_dal/field.is.valid.htm"/>
                  <topic label="field.enum.is.applicable()"
             href="help/html/progguide/functions_dal/field.enum.is.applicable.htm"/>
                  <topic label="field.update()"
             href="help/html/progguide/functions_dal/field.update.htm"/>
               </topic>
               <topic label="DAL2 Business Method hooks">
                  <topic label="DAL2 Business method hooks"
             href="help/html/progguide/functions_dal/dal2_bm_hooks.htm"/>
                  <topic label="business.method.is.never.allowed()"
             href="help/html/progguide/functions_dal/business.method.is.never.allowed.htm"/>
                  <topic label="business.method.is.allowed()"
             href="help/html/progguide/functions_dal/business.method.is.allowed.htm"/>
               </topic>
               <topic label="DAL2 Field dependencies">
                  <topic label="DAL2 Field dependencies"
             href="help/html/progguide/functions_dal/dal2_field_dependencies.htm"/>
                  <topic label="dal.field.depends.on()"
             href="help/html/progguide/functions_dal/dal.field.depends.on.htm"/>
                  <topic label="dal.require.field()"
             href="help/html/progguide/functions_dal/dal.require.field.htm"/>
               </topic>
               <topic label="DAL2 and the 4GL Engine"
          href="help/html/progguide/functions_dal/dal2_4gle.htm"/>
               <topic label="DAL2 Flow of field hooks"
          href="help/html/progguide/functions_dal/dal2_flow.htm"/>
               <topic label="DAL2 Test Mode"
          href="help/html/progguide/functions_dal/dal2_test_mode.htm"/>
               <topic label="DAL Context" href="help/html/progguide/functions_dal/dal_context.htm"/>
            </toc>