Question on Droop Down by Key

[Former Member]

Hi All,

I have a drop down by key element in the view, I have binded the value to it.

But when i run my application the drop down is not showing the key's instead the values are displayed.

In WDDOINIT I have the following code.

DATA: lf_value_set type wdy_key_value.

DATA: lt_value_set type wdy_key_value_table.

lf_value_set-key = lf_tzone-zone. " Key

lf_Value_set-value = lf_tzone-descript. " Description

INSERT lf_value_set INTO TABLE lt_value_set.

• Added to the attribute info

lo_nd_info = lo_nd_termination_details->get_node_info( ).

lo_nd_info->set_attribute_value_set( name = 'TZONE' value_set = lt_value_set ).

To Display the keys along with the values in Drop down I have coded the following in WDMODIFYVIEW

DATA: lcl_tzone type ref to cl_wd_dropdown_by_key.

• Change the dynamic properties of dropdown box

lcl_tzone ?= view->get_element( 'TZONE_DDL').

• Key visible

lcl_tzone->SET_KEY_VISIBLE( abap_true ).

Till this point everything works fine.

My requirement is when i select any of the values in dropdown i need to display the KEY as the selected one instead of VALUE. Can you please help me how can i achieve this.

Thanks,

Krishna

[I039810 · Accepted solution]

Hi Krishna,

To do this have the values of

key = KEY

value = KEY.

This will have a dropdown of keys. when you select also the Key will be displayed.

Regards,

Shalini.

[Former Member · Accepted solution]

hi ,

doing it

 value1-key = sy-tabix. // ur KEY
 value1-value = sy-tabix. // ur KEY 
 APPEND value1 TO set.

works , bt does it make sense?

rgds,

amit

[Former Member · Accepted solution]

Hello All,

Thanks for your Response.

But my requirement is to display KEY and VALUE in the drop down (Set_key_visible->abap_true)

Eg:

RED 01

BLUE 02

GREEN 03

on selection both the key+value should be displayed as selected one.

Eg: RED 01.

To over come this I did it other way round.

VALUE_SET-KEY = 'KEY'.

CONCATENATE KEY VALUE INTO VALUE_SET-VALUE SEPARATED BY SPACE.

Thanks once again for all your help..

Regards,

Krishna

[Former Member]

hi,

Drop down by key will be used to map simple types created in dictionary . This simple type will have Key and the value. The value will be displayed in the drop down and by selecting it, we can get the corresponding key.

if u r using drop down by key , than proceed like this :

1 declare a context node of cardinality 0..1

2 declare attribute of type string under it . The attribute name should be exactly the same as that in database table '

eg if u want to poulate values for a field ' SYS' from table , than giv the attribute name as 'SYS' in context attribute

3 declare internal table of type standard table

4 populate internal table with values

5 take the refernce of the node , u have created

6 bind it with the internal table

here is one code as an example for ur reference

TYPES: BEGIN OF str_roles,
  ->  role TYPE z0cz_roles-role_id,
 ->  END OF str_roles.
 
  ->DATA: it_role TYPE TABLE OF str_roles,
   ->    wa_role TYPE str_roles.
 
  ->DATA:          value1 TYPE wdy_key_value,
    ->       set TYPE wdy_key_value_table.
 
 
 -> SELECT role_id FROM z0cz_roles INTO TABLE it_role.
 
->SORT IT_ROLE DESCENDING BY ROLE.
->  LOOP AT it_role INTO wa_role.
 
  ->  value1-key = sy-tabix.
  ->  value1-value = wa_role-role.
  ->  APPEND value1 TO set.
   ->  ENDLOOP.
 
->  DATA : node_info TYPE REF TO if_wd_context_node_info.
 -> node_info = wd_context->get_node_info( ).
->  node_info = node_info->get_child_node('CN_DROPDOWN').
  ->node_info->set_attribute_value_set( name = 'CA_ROLE'   value_set = set ).

regards,

amit