Function Returns the dropdownlist of an attribute
Example ABAP 
myddlstring =
s10dropdownlist( "kunnr" ).
Format ABAP 
data:
  myattrname type string,
  myvaluelist type string,
  myddlstring type string.

myddlstring =
  s10dropdownlist(
    exporting
      attrname = myattrname
      valuelist = myvaluelist ).
Parameters
Name Type Description
attrname string
Attribute name
valuelist string
Value list (filter)
ddlstring string
Dropdown list
Description The s10dropdownlist() method is implicitly called by the S10 framework when the dropdown list for an attribute is requested in HTML for a class attribute "attr" via "attr@dropdownlist". Example:
HTML 
<label class='label output' 
    name='land1'></label><br />
<select class='inputselect' size="1" 
    name='land1' style='width: 240px;'
   data-s10dropdownlist='land1@dropdownlist'>
</select>

The S10 framework automatically builds the dropdown list from the information in the SAP Data dictionary. You can specify in HTML whether the internal codes should also be displayed, or only the texts. Example:

HTML 

<label class='label output' 
    name='bsark'></label><br />
<select class='inputselect' size="1" 
    name='bsark' style='width: 240px;'
    data-s10dropdownlist='bsark@dropdownlist'
    data-s10options='hidekeys'>
</select>

s10dropdownlist() always returns the values in alphabetical order of the keys. If you turn off the display of the keys in HTML, the dropdown list will be displayed sorted by the text:

The dropdown list is returned as a string in which the key and the text are separated by a TAB character and the entries by a line feed. Here is the display of the country list in the ABAP Debugger:



If the default dropdown list contains too many values, you can include a value list as a filter. Since the call to s10dropdownlist() for the value list in HTML is implicitly made by the S10 framework, this requires overriding the s10dropdownlist() method in your class.

We show the procedure using the country list and assume that you only want to offer a selection of countries in the dropdown list for selection.

HTML 
<label class='label output' 
    name='land1'></label><br />
<select class='inputselect' size="1" 
    name='land1' style='width: 240px;'
   data-s10dropdownlist='countries01@dropdownlist'
   data-s10options='hidekeys'>
</select>

ABAP 

methods:
      s10dropdownlist redefinition.
* redefinition of s10dropdownlist() for certain attributes
  method s10dropdownlist.

    case to_lower( attrname ).
      when 'countries01'.
        ddlstring = super->s10dropdownlist(
          exporting
             attrname = 'land1'
             valuelist = 'AT,AU,BE,CA,CH,DE,FR,IT' ).


* call up super method for all other attributes
      when others.
        ddlstring = super->s10dropdownlist(
           exporting
              attrname = attrname
              valuelist = valuelist ).
    endcase.

  endmethod.

 

Dynamically generated lists are also possible. For example, when selecting customers, it would make sense to offer only those countries in which there actually are customers. We can either implement this again with the same inheritance mechanism or build the list ourselves without s10dropdownlist(). We show both methods here.

Method 1 (Redefinition of s10dropdownlist)

HTML 

<label class='label output' 
    name='land1'></label><br />
    <select class='inputselect' size="1" 
    name='land1' style='width: 240px;'
       data-s10dropdownlist='countries02@dropdownlist'
       data-s10options='hidekeys'>
    </select>

ABAP 

methods:
      s10dropdownlist redefinition.
* redefinition of s10dropdownlist() for certain attributes
  method s10dropdownlist.

    case to_lower( attrname ).
      when 'countries01'.
        ddlstring = super->s10dropdownlist(
          exporting
             attrname = 'land1'
             valuelist = 'AT,AU,BE,CA,CH,DE,FR,IT' ).
   when 'countries02'.

*       build up country code list from existing customers
        data:
          valuelist02 type string,
          tabland1 type table of kna1-land1.

        select distinct land1 from kna1 into table tabland1.
        concatenate lines of tabland1 into valuelist02
        separated by ','.

        ddlstring = super->s10dropdownlist(
         exporting
            attrname = 'land1'
            valuelist = valuelist02 ). 


* call up super method for all other attributes
      when others.
        ddlstring = super->s10dropdownlist(
           exporting
              attrname = attrname
              valuelist = valuelist ).
    endcase.

  endmethod.

Method 2 (without s10dropdownlist)

HTML 

<label class='label output' 
    name='land1'></label><br />
<select class='inputselect' size="1" 
    name='land1' style='width: 240px;'
   data-s10dropdownlist='ddlcountries02'
   data-s10options='hidekeys'>
</select>


ABAP 

data:
      ddlcountries02 type string.methods:
       build_ddlcountries02
        exporting
          ddlcountries02 type string.

method build_ddlcountries02.
    clear ddlcountries02.

    data: land1 type kna1-land1,
          landx type t005t-landx.

    select distinct kna1~land1 t005t~landx  into (land1,landx)
      from kna1 join t005t
        on kna1~land1 = t005t~land1
        and t005t~spras = sy-langu
          order by kna1~land1.

      ddlcountries02 = ddlcountries02 
                 && land1 && cl_abap_char_utilities=>horizontal_tab 
                 && landx && cl_abap_char_utilities=>cr_lf.
    endselect.
  endmethod.

 
Components S10 Framework