Mandatory field validation on Page links.

Question

We have created a Portal application where we included different applications as taskflows. We have also created a tabbed interface which helps us to communicate from one task flow to another taskflow. When we are in one page of taskflow and try to move to another page of different taskflow using tabbed interface we receive mandatory field validation error which prevents us to move to any other page until we fill all the mandatory fields. We need to move to different page of taskflow by using the tabbed interface even without filling all the necessary mandatory fields. Can anyone help us to resolve this issue as this is very important for our project.

Answer 1

<b>Layout</b>
<%@page language="abap" %>
<%@extension name="htmlb" prefix="htmlb" %>
<htmlb:content design="design2003" >
  <htmlb:page title="Check Pernr " >
    <htmlb:form>
      <htmlb:textView text   = "Personnel No."
                      design = "EMPHASIZED" />
      <htmlb:inputField id    = "pernr"
                        value = "<%= lv_pernr %>" />
<%
if lv_no_pernr = 'X'.
%>
<script language="Javascript">
alert ("Personnel no. is not Valid")
</script>
<%endif.%>
   </htmlb:form>
  </htmlb:page>
</htmlb:content>
<b>ONINPUTPROCESSING</b>
DATA: l_pernr TYPE persno.
  DATA: data TYPE REF TO cl_htmlb_inputfield.
  data ?= cl_htmlb_manager=>get_data( request = runtime->server->request
                                         name     = 'inputField'
                                         id       = 'pernr' ).
  IF data IS NOT INITIAL.
    l_pernr = data->value.
  ENDIF.
CLEAR lv_no_pernr.
SELECT SINGLE pernr FROM pa0000 INTO l_pernr WHERE pernr EQ lv_pernr.
IF sy-subrc NE 0.
  lv_no_pernr = 'X'.
ENDIF.
<b>PAGE ATTRIBUTES</b>
lv_no_pernr     TYPE     FLAG
lv_pernr     TYPE     PERSNO
hope this helps.
A