Is it possible to use Click Function in Dropdownbox?

Hello everybody,
I have a question on dropdownbox GUI element:
is it possible to use the attribute of DropDownBox to realize the 'Click ' function?That means when one value from DropdownBox being selected,some action will be done.
I checked the attributes of dropdownbox,and found maybe the following ones will help
onselect                    = ?
selection                   = ?
onclientselect              = ?
are they correct?or which kind of attributes are
corresponding to?
Thanks in advance!
Liying
Message was edited by: Liying Wang

Hi Liying,
Welcome to SDN!!
See, the highlighted part in the code, that will genrate a server side event for you upon selection:
<htmlb:dropdownListBox id           = "DDLB1"
                  table             = "<%= projectid_tab %>"
                 <b> onSelect          = "DDLB1Event"</b>
                  selection         = "<%= tab1sel %>"
                  nameOfValueColumn = "name"
                  nameOfKeyColumn   = "value" />
Now we can catch the event in event handler as:
DATA: event TYPE REF TO if_htmlb_data,
        ddlb_event TYPE REF TO cl_htmlb_event_selection.
DATA: data TYPE REF TO cl_htmlb_dropdownlistbox.
event = cl_htmlb_manager=>get_event( request ).
case event->event_id.
   when 'DDLB1'.
     ddlb_event ?= event.
     IF ddlb_event->id EQ 'DDLB1' .
       tab1sel = ddlb_event->selection .
     ELSEIF ddlb_event->id EQ 'DDLB2' .
       tab2sel = ddlb_event->selection .
     ENDIF .
endcase.
Hope this helps,
Regards,
Ravikiran.
PS:Consider rewarding points for helpful replies.

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