abap webdynpro/Creating radio buttons dynamically

[Former Member]

Hi ,

Is there any way we can create 'Text' along with buttons beside the text 'YES' and 'NO' dynamically in a VIEW through 'ABAP WEBDYNPRO'.

Thanks,

kumar

[abhimanyu_lagishetti7 · Accepted solution]

Hi

look at the code, here the button is created dynamically. similarly you can create text view.

http://help.sap.com/saphelp_nw70/helpdata/EN/11/ba74412cba127de10000000a155106/content.htm

you can change the button text using the methods inside CL_WD_BUTTON.

Abhi

[Former Member]

tahnks,

[Former Member]

Code for dynamic element creation are intended to be written in WDDOMODIFY method. Below code snippet creates two Radio buttons dynamically with texts 'Male' & 'Female'. You can always extend the logic to create as many.

method wddomodifyview .

if first_time eq abap_true.

data: LR_CONTAINER         type ref to CL_WD_UIELEMENT_CONTAINER,
      LR_RADIOBUTTON1            type ref to CL_WD_RADIOBUTTON,
      LR_RADIOBUTTON2            type ref to CL_WD_RADIOBUTTON,      
      LR_FLOW_DATA         type ref to CL_WD_FLOW_DATA.


" bind text property will give TEXT that appears next to Radio Button
CALL METHOD cl_wd_radiobutton=>new_radiobutton
  EXPORTING 
   bind_selected_key   =  '01'  
   BIND_TEXT           =  'Male'
  receiving
    control             = LR_RADIOBUTTON1.

" bind text property will give TEXT that appears next to Radio Button
CALL METHOD cl_wd_radiobutton=>new_radiobutton
  EXPORTING 
    bind_selected_key   = '02' 
   BIND_TEXT           = 'Female'
  receiving
    control             = LR_RADIOBUTTON2.

 LR_FLOW_DATA        =  CL_WD_FLOW_DATA=>NEW_FLOW_DATA( element = LR_RADIOBUTTON1  ).
 LR_FLOW_DATA        =  CL_WD_FLOW_DATA=>NEW_FLOW_DATA( element = LR_RADIOBUTTON2  ).
 LR_CONTAINER ?= view->GET_ELEMENT( 'ROOTUIELEMENTCONTAINER' ).
 LR_CONTAINER->ADD_CHILD( LR_RADIOBUTTON1  ).
 LR_CONTAINER->ADD_CHILD( LR_RADIOBUTTON2  ).
 
endif.
endmethod.

for more on dynamic programing read blogs from thomas.

[https://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/2888] [original link is broken] [original link is broken] [original link is broken];

Greetings

Prashant

[Former Member]

Hi Prasanth ,

I tried to with your sample code to create radiobutton group , but its giving me an error message 'Could not find attribute 01'.

My Req is as below :

Is there any way we can create 'Text' along with radio button groups beside the text 'YES' and 'NO' dynamically in a VIEW through 'ABAP WEBDYNPRO'. Can we create a context node with 'TEXT' attribute.

Eg : TEXT RADIOBUTTON1 'yes' RADIOBUTTON2 'no'.

Thanks,

kumar

[Former Member]

Hi Kumar,

In sample Code i just set '01' and '02' as sample values..in real scenario the value would be comming from Attribute in the context of your view. syntax would be

bindSelected_key = <V_MyVIEW>.<MYNODE>.<MYKEY>

if you consider below example then you bindSelected_key would read

bindSelected_key = V_MyVIEW.MYNODE.CARRID 

[http://help.sap.com/saphelp_nw04s/helpdata/EN/c0/e8884118aa1709e10000000a155106/frameset.htm]

BindSelected_key should have a ValueSet attached. The value set of the attribute bound to the property selectedKey. If the attribute has an ABAP Dictionary type and if fixed domain values are defined for this type, these values are used.

-

---

creating Valueset----

---

I Have 1 context node by name INPUT. Below are its properties:

Cardinality: 1..1

Selection: 0..1

Initialization Lead Selection: The box is checked (You get the error message in your component coz this isnt set)

Singleton: The box is checked

Now I have 2 attributes CARRID & CONNID under this node of the types SFLIGHT-CARRID & SFLIGHT-CONNID.

Now within my WDDOINIT method I fill my 2 dropdowns with values like shown below:

data: wd_node type ref to if_wd_context_node,
        wd_node_info type ref to if_wd_context_node_info,
 
** Internal table & workareas to hold possible values for carrid & connid
        lt_carrid_values type standard table of wd_this->element_input-carrid,
        lt_connid_values type standard table of wd_this->element_input-connid,
        wa_carrid type wd_this->element_input-carrid,
        wa_connid type wd_this->element_input-connid,
 
** Internal table & workareas to hold name & value pairs
        wa_carrid_valueset type wdr_context_attr_value,
        wa_connid_valueset type wdr_context_attr_value,
        lt_carrid_valueset type standard table of wdr_context_attr_value,
        lt_connid_valueset type standard table of wdr_context_attr_value.
 
  wd_node = wd_context->get_child_node( name = 'INPUT' ).
 
 
  select distinct carrid from sflight into table lt_carrid_values.
  select distinct connid from sflight into table lt_connid_values.
 
  loop at lt_carrid_values into wa_carrid.
    wa_carrid_valueset-value = wa_carrid.
    wa_carrid_valueset-text  = wa_carrid.
    append wa_carrid_valueset to lt_carrid_valueset.
    clear wa_carrid_valueset.
  endloop.
 
  loop at lt_connid_values into wa_connid.
    wa_connid_valueset-value = wa_connid.
    wa_connid_valueset-text  = wa_connid.
    append wa_connid_valueset to lt_connid_valueset.
    clear wa_connid_valueset.
  endloop.
 
 
  wd_node_info = wd_node->get_node_info( ).
 
  wd_node_info->set_attribute_value_set( exporting name      = c
                                                   value_set = lt_carrid_valueset ).
 
  wd_node_info->set_attribute_value_set( exporting name      = 'CONNID'
                                                   value_set = lt_connid_valueset ).

-

---

Greetings

Prashant

[Former Member]

hi Prasanth ,

With the above code i was able to create a radio button with text but not the Radio Button group i.e if 'YES' is been selected 'NO' cant be selected . Is there any way we can do that?

Thanks,

Kumar.

[Former Member]

Hi Kumar,

sorry i did'nt initially get that you wanted radionbuttonGROUP. well check the standard webdynpro component WDR_TEST_EVENTS browse to the VIEW

RADIOBTNGRPBYKEY you see that the Radio button Group is bound to context property RadiobtnGrpByKey.selectedKey1.

to create this dynamically check the code with explanation below

method wddomodifyview .

if first_time eq abap_true.
 
data: LR_CONTAINER         type ref to CL_WD_UIELEMENT_CONTAINER,
      LR_FLOW_DATA         type ref to CL_WD_FLOW_DATA.


  data: lr_rbk type ref to cl_wd_radiobutton_group_by_key.
   CALL METHOD cl_wd_radiobutton_group_by_key=>new_radiobutton_group_by_key
    EXPORTING
      bind_selected_key        = 'RadiobtnGrpByKey.selectedKey1'
    receiving
      control                  =   lr_rbk.

*--------------RadiobtnGrpByKey.selectedKey1---------*
*Attribute selectedKey1 that has domain with value range defined as
*00	Application
*01	Component
*02	Template Container
*03	Template
 
 
 LR_FLOW_DATA        =  CL_WD_FLOW_DATA=>NEW_FLOW_DATA( element = lr_rbk  ).
 LR_CONTAINER ?= view->GET_ELEMENT( 'ROOTUIELEMENTCONTAINER' ).
 LR_CONTAINER->ADD_CHILD( LR_RADIOBUTTON1  ).
 
endif.
endmethod.

for detail method of radio group by key check link

[http://help.sap.com/saphelp_nw04s/helpdata/EN/37/a6884121a41c09e10000000a155106/content.htm]

[arjun_thakur]

Hi Kumar,

Refer these blogs:

/people/thomas.szcs/blog/2005/12/28/dynamic-programming-in-web-dynpro-abap--introduction-and-part-i-understanding-ui-elements

/people/thomas.szcs/blog/2006/01/03/dynamic-programming-in-web-dynpro-abap--part-ii-handling-viewelements

/people/thomas.szcs/blog/2006/02/22/dynamic-programming-in-web-dynpro-abap--part-iii-aggregations-and-ddic-binding-of-viewelements

I hope it helps.

Regards

Arjun