Navigation through htmlb:breadcrumb

Question

Hi,
  I want to navigate to the specified page when "key2" is selected through breadcrumb tag.I have tried with the following code.but its showing some error at navigation->goto_page and i have also tried with next_page.Can anyone please help in this regard.
LAYOUT:
<htmlb:breadCrumb id  = "myBreadCrumb0"
tooltip  = "Behaviour Default"
onClick  = "myBreadClick1">
<htmlb:breadCrumbItem key="k1" value="text1" />
<htmlb:breadCrumbItem key="k2" value="text2" />
<htmlb:breadCrumbItem key="k3" value="text3" />
<htmlb:breadCrumbItem key="k4" value="text4" />
</htmlb:breadCrumb>
  </htmlb:form>
EVENTHANDLER:
DATA:
  event TYPE REF TO CL_HTMLB_EVENT.
  event = CL_HTMLB_MANAGER=>get_event( runtime->server->request ).
  IF event->name = 'breadCrumb' AND event->event_type = 'click'.
    DATA: breadCrumb_event TYPE REF TO CL_HTMLB_EVENT_BREADCRUMB.
    breadCrumb_event ?= event.
if breadCrumb_event->key = 'k2'.
navigation->goto_page( 'topage2' ).
ENDIF.
endif.

Answer 1

Hi ravi,
   Here is the sample code for your requirement,
In the Layout
<%@page language="abap"%>
<%@extension name="htmlb" prefix="htmlb"%>
<htmlb:content design="design2003">
  <htmlb:page title = "first page ">
    <htmlb:form>
      <br>
      <br>
      <br>
      <center>
      <htmlb:breadCrumb id = "myBreadCrumb0"
                         tooltip = "Behaviour Default"
                       onClick = "myBreadClick1">
           <htmlb:breadCrumbItem key="k1" value="text1" />
           <htmlb:breadCrumbItem key="k2" value="text2" />
           <htmlb:breadCrumbItem key="k3" value="text3" />
           <htmlb:breadCrumbItem key="k4" value="text4" />
       </htmlb:breadCrumb>
       </center>
    </htmlb:form>
  </htmlb:page>
</htmlb:content>
In Oninputprocessing
DATA:
event TYPE REF TO CL_HTMLB_EVENT.
event = CL_HTMLB_MANAGER=>get_event( runtime->server->request ).
IF event->name = 'breadCrumb' AND event->event_type = 'click'.
DATA: breadCrumb_event TYPE REF TO CL_HTMLB_EVENT_BREADCRUMB.
breadCrumb_event ?= event.
if breadCrumb_event->key = 'k2'.
navigation->goto_page( 'second.htm' ).
ENDIF.
endif.
Cross check my code with your code and try you will get the solution.
Regards,
Azaz Ali.