Enabling/Disabling a button in Web appl. based on exception in a Query

Hi all,
I am wondering whether we can grey out a button in the web applic. designer based on whether a report has an exception showing.
So now we can enable or disable a button, so at runtime, when the web app runs, and a condition is visible in the analysis item table, then the button (save for example) should be disabled, otherwise if there are no exceptions then it should be enabled.
I am thinking Javascript, but not sure how to read the exceptions in a web apps query?
Thanks for any help forwarded.
Regards
SMS

Hi Sumit,
just add one more attribute of type wdy_boolean, and bind this attribute to readonly property of button by coding.
then as per your cell value set the attribute value, below is the some sample code.
METHOD wddoinit .
DATA: lv_node TYPE REF TO if_wd_context_node,
        lt_mara TYPE ig_componentcontroller=>elements_mara,
        wa_mara TYPE ig_componentcontroller=>element_mara.
SELECT matnr
         ersda
         ernam
         mtart
         matkl
         meins FROM mara INTO CORRESPONDING FIELDS OF TABLE lt_mara
                                 WHERE meins = 'GM' OR meins = 'CCM'.
SORT lt_mara BY meins.
lv_node = wd_context->get_child_node( name = wd_this->wdctx_mara ).
LOOP AT lt_mara INTO wa_mara.
    IF wa_mara-meins = 'GM'.
      wa_mara-readonly = 'X'.
    ELSE.
      wa_mara-readonly = ' '.
    ENDIF.
    MODIFY lt_mara FROM wa_mara TRANSPORTING readonly.
    lv_node->bind_structure( SET_INITIAL_ELEMENTS = ABAP_FALSE
                              new_item = wa_mara ).
ENDLOOP.
lv_node->bind_table( new_items = lt_mara ).
ENDMETHOD.
Regards
Srinivas

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Hi
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