RE:Web dynpro in ABAP -Diabling of button thru checkbox

Question

Hi,
I have a requirement ie i have a button in a view .Also i have a check box in that view.Now my requirement is that if i check the checkbox then the button in the same view should be disabled.How to do this...................Screen shots will be helpful....
Thanks in ADVANCE,
ALEX.

Answer 1

hi ,
1 create 2  context attribute ca_attr1 and ca_attr2 of type WDY_BOOLEAN , bind with ur ENABLE property of Button UI
and enable property of checkbox
2 create a action for the  OnToggle Event of ur checkbox
3 in the OnactionMethod , check whether the CjeckBox is ticked using Get_attribute method
4 If check box is checked ( ir ca_attr is "ABAP_TRUE" or 'X'), disable ur button by setting ca_attr2 to "ABAP_FALSE"
DATA lo_nd_cn_node TYPE REF TO if_wd_context_node.
    DATA lo_el_cn_node TYPE REF TO if_wd_context_element.
    DATA ls_cn_node TYPE wd_this->element_cn_node .
    DATA lv_attr2  LIKE ls_city-ca_attr2.
*   navigate from <CONTEXT> to <CN_VISIBLE> via lead selection
    lo_nd_node = wd_context->get_child_node( name = wd_this->wdctx_ca_attr2).
*   get element via lead selection
    lo_el_cn_node = lo_nd_cn_node->get_element(  ).
*   get single attribute
    lo_el_cn_node->get_attribute(
      EXPORTING
        name =  `CA_ATTR2`
      IMPORTING
        value = lv_attr ).
// if lv_attr is 'X ' ( checked) , set ca_attr1 to ' '
IF lv_attr EQ ' X'.
DATA lo_nd_cn_node TYPE REF TO if_wd_context_node.
    DATA lo_el_cn_node TYPE REF TO if_wd_context_element.
    DATA ls_cn_node TYPE wd_this->element_cn_node .
*   navigate from <CONTEXT> to <CN_VISIBLE> via lead selection
    lo_nd_node = wd_context->get_child_node( name = wd_this->wdctx_ca_attr1).
*   get element via lead selection
    lo_el_cn_node = lo_nd_cn_node->get_element(  ).
*   set single attribute
    lo_el_cn_node->set_attribute(
      EXPORTING
        name =  `CA_ATTR1`
     value = ' '  ).
regards,
amit