Drop down by index in webdynpro

[Former Member]

I am using a drop down by index element in my webdynpro ABAP screen.

I populate this drop down by fetching values through a remote-enabled function module. How do i set one particular value as default after fetching these values. ?

I am getting the currency keys as the list of values and want to show a particular value when the view is first shown. How is this possible?

regards,

Priyank

[Former Member]

xxxxxxxx->set_lead_selection_index( index = ).

[Former Member]

and if i don't know which index holds the value i want, i just know the value that i wish to display??

regards,

Priyank

[Former Member]

Hi.

Then loop the elements of the node and compare the values.

If the value match set lead selection the current loop index.

You can get all elements with node->get_elements. This method returns a set of context elements.

Cheers,

Sascha

[Former Member]

hi Sascha,

I am having slight trouble doing this. Can you give me a sample code please.

regards,

Priyank

[abhimanyu_lagishetti7]

Hi Priyank,

data: node type ref to if_wd_context_node.

loop at <internal table> into <workarea>

if workarea-currencyfield = 'USD'.

node = wd_context->get_child_node( 'Your context node' ).

node->set_lead_selection_index( sy-index ).

endif.

endloop.

Regards

Abhimanyu L

[Former Member]

Hi Priyank,

I have the sample code where index is used.

This code is used for radiobutton group by index.

You can use same logic in your requirement.

data:

text type string,

element type ref to if_wd_context_element,

index type string.

DATA:

node_check TYPE REF TO if_wd_context_node,

elem_check TYPE REF TO if_wd_context_element,

stru_check TYPE if_start_ior=>element_check ,

item_check_attribute LIKE stru_check-check_attribute.

element = wd_context->get_lead_selection( ).

index = wdevent->get_string( 'INDEX' ).

• Case when Overhead option is selected

• navigate from <CONTEXT> to <CHECK> via lead selection

node_check = wd_context->get_child_node( name = if_start_ior=>wdctx_check ).

• get element via lead selection

elem_check = node_check->get_element( ).

• get single attribute

elem_check->get_attribute(

EXPORTING

name = `CHECK_ATTRIBUTE`

IMPORTING

value = item_check_attribute ).

if index EQ 2.

elem_check->set_attribute( name = 'CHECK_ATTRIBUTE' value = Abap_true ).

endif.

if index EQ 1.

elem_check->set_attribute( name = 'CHECK_ATTRIBUTE' value = Abap_false ).

endif.

Hope this answer will help you.

Cheers,

Darshna.

[Former Member]

Hi.

Another version:

data:
 lt_element_set          TYPE wdr_context_element_set,
lr_elem  TYPE REF TO if_wd_context_element,
ls_elem_struc     type kna1.

lt_element_set = <your_context_node>->get_elemente( ).

LOOP AT lt_element_set INTO lr_elem.
    lr_elem->get_static_attributes(
      IMPORTING
        static_attributes = ls_elem_struc
    ).
    if ls_elem_struc-kunnr eq '100000'.
        context_node->set_lead_selection( lr_elem ).
    endif.
endloop.

Cheers,

Sascha