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

[alex_georgek]

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.

[Former Member · Accepted solution]

hi,

Proceed as below :

1. Create an Contex Attribute of type wdy_boolean.

2. Bind this to enable property of Button.

3. On the click of Checkbox, implement the Action for checkbox.

4. Set the attribute's property to X to Enable the Button and ' ' to disable the button.

[Former Member]

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

[arjun_thakur]

Hi Alex,

Create an attribute of boolean type and bind it with the enabled property of the button. Now on the ONTOGGLE event of the radio button set the value of that attribute as abab_false using code wizard (Ctrl + F7).

Refer: http://help.sap.com/saphelp_nwce10/helpdata/en/3c/3ebcdb7adff540956627904821280d/content.htm

I hope it helps.

Regards

Arjun

[Former Member]

Create a conetxt attribute of type wdy_boolean (ENABLED) and bind this to the enabled proeprty of teh button. crete a checkbox and button in the view, in the check box have a event for onToggle....

Set the default value for checkbox as space in the contetx attribute and also X for the wdy_boolean type.(ENABLED).

In the on toggle event handler -

set the attribute to space to enable thebutton

wd_context->set_attribute

exporting

value = 'X'

name = 'ENABLED'

Edited by: Lekha on Dec 8, 2009 10:47 AM