How to make standard button invisible in a View dynamically?

[Former Member]

Hi,

I have got the following requirement.

I have called a component from my enhanced standard component.In the output View,I need to make 3 standard buttons invisible.

I cannot not delete the UI elements since they are being already used in some other component. There are no binding properties already available and system is not allowing to bind properties to those buttons.

Please advice on what to write in the WDDOMODIFYVIEW of that view to make those buttons invisible. I can write the bypass code to happen the invisibility only on my requirement.

I got this following code from 

IWDBotton btn = (iWDButton) view.getElement("<your  button iD>");

btn.setEnabled(false);

But unable to decipher it and also it has syntax error

[former_member211591 · Accepted solution]

Hi,

if you are using Webdynpro Java, please post your question there.

regards

[Former Member · Accepted solution]

I am using ABAP Webdynpro in PPM

[ramakrishnappa · Accepted solution]

Hi Kishore,

You can achieve your requirement as below

Enhance the view and user either PostExit or OverWrite of method WDDOMODIFYVIEW( ) of view
Identify the name of the buttons in view layout
Get the element from view by using VIEW reference
Now, set the property VISIBLE of the element

Example:  Let us say we have button names as BTN_DISPLAY, BTN_BACK, etc

   DATA lo_ui_element      type ref to CL_WD_UIELEMENT.
      DATA lo_container       TYPE REF TO cl_wd_uielement_container.

" get root container
      lo_container ?= view->get_root_element( ).

" get button reference
     lo_ui_element ?= lo_container->get_element( 'BTN_DISPLAY' ).

 "Hide the element
     lo_ui_element->set_visible( cl_wd_uielement=>e_visible-none ).

"Repeat the same for other buttons as well

Please refer the below link for more information:

----------------------------------------

You can also hide the buttons by using customization of WD component.

Please refer the below link

Customize view fields using application configuration in Webdynpro ABAP

Hope this helps you.

Regards,

Rama

[Former Member · Accepted solution]

Hi Ramakrishna,

I have tried doing that but it is throwing the following error.

It is coming both in post exit /overwrite exit of WDDOMODIFY view

Method "GET_ELEMENT" is unknown or PROTECTED or PRIVATE.

[ramakrishnappa · Accepted solution]

Hi Kishore,

Could you share the release of your system.

You can also hide the buttons by using customization:

Please refer the below link

Customize view fields using application configuration in Webdynpro ABAP

Hope this helps you.

Regards,

Rama

[Former Member · Accepted solution]

Hi,

SAP EHP 2 for SAP NetWeaver 7.0

We are told not to do with configuration

[ramakrishnappa · Accepted solution]

Hi Kishore,

We have below options to achieve your requirement

1. Hide buttons in the layout editor using enhancement - You do not want to do, as its used in other component
2. Hide the buttons by using get_element and set visibility property -
3. Hide the buttons by using customization concept - You are told not to do configuration

Please try the below steps for option 2

DATA lt_children        TYPE cl_wd_uielement=>tt_uielement.
DATA lo_container   TYPE REF TO cl_wd_uielement_container.


FIELD-SYMBOLS: <fs_ui_element> TYPE REF TO cl_wd_uielement.


CLEAR lt_children.

lo_container ?= view->get_root_element( ).



  lt_children = lo_container->get_children( ).


  LOOP AT lt_children ASSIGNING <fs_element>.

  IF <fs_element>-id = 'BTN_DISPLY' OR
  <fs_element>-id = 'BTN_BACK'.


  <fs_element>->set_visible( cl_wd_uielement=>e_visible-NONE ).
  ENDIF.



   ENDLOOP.

Hope this helps you.

Regards,

Rama

[Former Member · Accepted solution]

"<FS_ELEMENT>" is an object reference and therefore does not have any

components called "ID".

Getting this error..I went to the referred class cl_wd_uielement. it has GET_ID, even that also throwing same error. How to define that?

[ramakrishnappa · Accepted solution]

Hi Kishore,

Sorry, it should be like this <fs_element>->id

DATA lt_children        TYPE cl_wd_uielement=>tt_uielement.
DATA lo_container   TYPE REF TO cl_wd_uielement_container.


FIELD-SYMBOLS: <fs_ui_element> TYPE REF TO cl_wd_uielement.


CLEAR lt_children.

lo_container ?= view->get_root_element( ).



  lt_children = lo_container->get_children( ).


  LOOP AT lt_children ASSIGNING <fs_element>.

  IF <fs_element>->id = 'BTN_DISPLY' OR
  <fs_element>->id = 'BTN_BACK'.


  <fs_element>->set_visible( cl_wd_uielement=>e_visible-NONE ).
  ENDIF.



   ENDLOOP.

Regards,

Rama

[Former Member · Accepted solution]

Hi Ramakrishnappa

I have pasted the code and in debug mode I have changed the button ID to the ID which I need to be hidden/invisible. But to my surprise I am just seeing the empty screen like below

[ramakrishnappa · Accepted solution]

Hi Kishore,

It seems like all the child elements are hidden. Please check that buttons are available in the lt_children. Hide only buttons not the other elements.

Please try debugging and check again.

Regards,

Rama

[Former Member · Accepted solution]

Yes ..Child elements are hidden. It_children is having only 1 record with main ID but not child.

So in debug I have put my child button id and executed and that above empty screen came

[ramakrishnappa · Accepted solution]

Hi Kishore,

Your view elements are structured inside many transparent containers. So, we need recursive search to find our element.

ROOT_UIELEMENT ----> TRANSAPRENT_CONTAINER---->.........>BTN_DISPLAY

Please check my document as below .. which uses recursive search

How to Hide UI Elements & Adjust View Layout Dynamically in Web Dynpro ABAP

If you need further assistance let me know. Also share snap shot the view elements structure from layout.

Regards,

Rama

[ramakrishnappa · Accepted solution]

Hi Kishore,

Thanks for mailing the snap shot of view layout.

Your actual requirement : Dynamically hide the tool bar buttons in a table

Please write the below code in PostExit/OverWrite of WDDOMODIFY( ) of view

  DATA lo_root TYPE REF TO cl_wd_uielement_container.
  DATA lo_table  TYPE REF TO cl_wd_table.
  DATA lo_toolbar TYPE REF TO cl_wd_toolbar.
  DATA lt_items   TYPE if_wd_toolbar_item=>tt_toolbar_item.


  DATA LO_UI_EL TYPE REF TO CL_WD_UIELEMENT.


  FIELD-SYMBOLS <fs_items> LIKE LINE OF lt_items.



  lo_root ?= view->get_root_element( ).

  lo_table ?= lo_root->get_child( id = 'STAFFINGTABLE').



  lo_toolbar = lo_table->get_toolbar( ).


  lt_items = lo_toolbar->get_toolbar_items( ).



  LOOP AT lt_items ASSIGNING <fs_items>.

    lo_UI_EL ?= <fs_items>.

    if lo_ui_el IS BOUND AND
      ( lo_ui_el->id eq 'BTN_1' or
     lo_ui_el->id eq 'BTN_2' ).



    lo_ui_el->set_visible( value = cl_wd_toolbar_button=>e_visible-none ).

    ENDIF.


  ENDLOOP.

Note: Replace tool bar buttons BTN_1, BTN_2 as per your requirement

Hope this resolves your issue.

Regards,

Rama

[NagaPrakashT]

Kishore,

    You can enhance the view and create Pre-Exit method. Inside the method please write the below code.

DATA: ui_element TYPE REF TO if_wd_view_element,
          button       TYPE REF TO cl_wd_button.

   CALL METHOD view->get_element
     EXPORTING
       id      = 'BUTTON1' "( ID of UI Element in Layout)
     RECEIVING
       element = ui_element.

   button ?= ui_element."( Casting)

  CALL METHOD button->set_visible
    EXPORTING
      value  = '01' " Invisible.

Thanks,

Naga

[Former Member]

Hi ,

The below highlighted line is throwing dump

DATA: ui_element TYPE REF TO if_wd_view_element,
          button       TYPE REF TO cl_wd_button.

   CALL METHOD view->get_element
     EXPORTING
       id      = 'BUTTON1' "( ID of UI Element in Layout)
     RECEIVING
       element = ui_element.

  button ?= ui_element."( Casting)

  CALL METHOD button->set_visible
    EXPORTING
      value  = '01' " Invisible.

Description :  Dynamic type conflict when assigning references

[Former Member]

Hello Kishore,

Were you able to get the code to work?  I have a similar requirement to hide a button on a toolbar and tried the suggested code but received the same error on the button ?= ui_element."( Casting) statement.

Thank you in advance for any information you can provide.

Pat