topic Re: Abap OOP Question in Application Development and Automation Discussions

Abap OOP Question

Former Member — Tue, 25 Nov 2008 09:55:24 GMT

Dear Experts!

Generally how can I use this method correctly?

Interface IF_WD_SELECT_OPTIONS has a method named ADD_SELECTION_FIELD.

Especially the import Parameter I_VALUE_HELP_TYPE is the most interesting one for me.

Because I need a special type : CO_VH_TYPE_CLOCK .

data ztest type ref to IF_WD_SELECT_OPTIONS.
create object ztest.


CALL METHOD ztest->add_selection_field
  EXPORTING
     i_id                         = 'BUKRS'
     i_value_help_type            = IF_WD_VALUE_HELP_HANDLER=>CO_VH_TYPE_CLOCK .

Please help me I dont know how to solve this requirement.

regards

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 10:01:54 GMT

The interface is just as class without implementation, u should assign the interface to a class and then to implement the method ADD_SELECTION_FIELD or you should say us where this interface is used, a BADI?

That interface is used in the class CL_WDR_SELECT_OPTIONS

Max

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 10:05:31 GMT

pls can you show me that just in a small code example.

Reagrds

ilhan

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 10:05:43 GMT

Your code should be like this:

data ztest type ref to CL_WDR_SELECT_OPTIONS. 
create object ztest.
 
 
CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
     i_id                         = 'BUKRS'
     i_value_help_type            = IF_WD_VALUE_HELP_HANDLER=>CO_VH_TYPE_CLOCK .

But I don't know the class CL_WDR_SELECT_OPTIONS

Let's know where u need to call the method above

Max

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 10:34:31 GMT

hi max

1)I get now the message:

if_wd_value_help_handler=>CO_VH_TYPE_CLOCK

is not type compatible with formal parameter i_value_help_type

2) By the way how did you find out that you need CL_WDR_SELECT_OPTIONS ?

regards

ertas

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 11:02:13 GMT

I've searched where the interface IF_WD_SELECT_OPTIONS is used.

It should be:

data ztest type ref to CL_WDR_SELECT_OPTIONS.
create object ztest.

CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
    i_id              = 'BUKRS'
    i_value_help_type = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_NONE.

Anyway the parameter IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_NONE is type string so u can also:

data ztest type ref to CL_WDR_SELECT_OPTIONS.
data: i_value_help_type type string.
create object ztest.


CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
    i_id              = 'BUKRS'
*    i_value_help_type = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_NONE.
    i_value_help_type = i_value_help_type.

Max

Edited by: max bianchi on Nov 25, 2008 12:02 PM

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 13:01:06 GMT

max thank you very much for your help but I need CO_VH_TYPE_CLOCK not

i_value_help_type = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_NONE.

but exactly this is my problem

i_value_help_type = IF_WD_VALUE_HELP_HANDLER=>CO_VH_TYPE_CLOCK

return the error:

if_wd_value_help_handler=>CO_VH_TYPE_CLOCK

is not type compatible with formal parameter i_value_help_type

Or is it not possible to use CO_VH_TYPE_CLOCK ????

regards

ertas

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 13:19:59 GMT

I don't know what CO_VH_TYPE_CLOCK means, anyway u can transfer it to a variable type string and use it for the method:

data ztest type ref to CL_WDR_SELECT_OPTIONS.
data: i_value_help_type type string.
create object ztest.

move IF_WD_VALUE_HELP_HANDLER=>CO_VH_TYPE_CLOCK to i_value_help_type.

CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
    i_id              = 'BUKRS'
    i_value_help_type = i_value_help_type.

Max

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 13:35:17 GMT

max,

that means there is no possiblity to use CO_VH_TYPE_CLOCK directly although it

is an attribute of IF_WD_VALUE_HELP_HANDLER.

regards

ertas

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 13:42:02 GMT

Hi Ertas

I'm sorry but I don't the interface IF_WD_SELECT_OPTIONS and the class CL_WDR_SELECT_OPTIONS, if I understand, it seems they are for WebDynpro.

So u should give more information for helping you: I don't understand what and where you need to do?

Max

Re: Abap OOP Question

Former Member — Tue, 25 Nov 2008 21:12:11 GMT

max it is very easy.

instead

data ztest type ref to CL_WDR_SELECT_OPTIONS.
data: i_value_help_type type string.
create object ztest.
 
CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
    i_id              = 'BUKRS'
    i_value_help_type = IF_WD_VALUE_HELP_HANDLER=>CO_PREFIX_NONE.

this

data ztest type ref to CL_WDR_SELECT_OPTIONS.
data: i_value_help_type type string.
create object ztest.
 
 
CALL METHOD ztest->IF_WD_SELECT_OPTIONS~add_selection_field
  EXPORTING
     i_id                         = 'BUKRS'
     i_value_help_type            = IF_WD_VALUE_HELP_HANDLER=>CO_VH_TYPE_CLOCK

to sum up:

no CO_PREFIX_NONE

but CO_VH_TYPE_CLOCK

OK????