Is it possible to dynamically create parameters from table entries?
For example like this:
SELECTION-SCREEN BEGIN OF BLOCK example WITH TITLE text-01
LOOP AT example_internal_table INTO example_workarea
IF example_workarea-field = criteria.
PARAMETERS: (example_workareafield) AS CHECKBOX.
ENDIF.
ENDLOOP.
SELECTION-SCREEN END OF BLOCK example.
The code snippet above throws the error that example-workarea-field is not a constant. Does this mean it isn't possible to dynamically declare parameters or am I just doing it wrong? Thanks
Correct. PARAMETERS statements compile into selection screens at compile time, not at runtime. Therefore you cannot do what you want in the way you have proposed.
However, it is possible to have some form of dynamic screens.
Look at the answers to this question: For the I/O fields in a normal ABAP screen, can i get them to behave like a SELECT-OPTIONS?
This gives you two starting points: The use of subscreens, which you can call dynamically, or the use of FREE_SELECTIONS_INIT as examples.
Depending on how crazy you are about this, you can also investigate:
http://help.sap.com/abapdocu_702/en/abenabap_language_dynamic.htm
You could load the DYNPRO and dynamically change the screen, activate and then run a report that calls the changed screen.
This is of course a different approach from using PARAMETERS and should only be used for pet projects, not real production code as these statements are for internal use. I believe this is the approach that SE16 uses when it generates a selection screen for a table.
Related
Really just a curious question.
Here are a few examples of the same concern that I have since they are being exported to the FM "REUSE_ALV_GRID_DISPLAY" for parameter "it_fieldcat".
ls_fieldcat-seltext_l = 'Material number'(052).
ls_fieldcat-seltext_m = 'Material'(053).
ls_fieldcat-seltext_s = 'Mat.'(054).
I tried removing the numbers on the right and executed the program but I didn't see any differences and I also tried to see what happens inside debug mode but it only fills the field with the string value, am I missing something or is there something that I wasn't able to notice?
I've been tasked to create a copy of a program which originally joins multiple tables and filters them according to the Parameters from the SELECTION-SCREEN and then shows the results in an ALV Grid Report, but for the use case of the copy it should instead populate a table in ECC that we will then be replicating to BW side. I have successfully copied and modified it accordingly but I can't seem to understand what the numbers beside the strings are doing.
Can someone please explain what their use is, would be very grateful to see a few examples.
Thanks!
The number in the brackets is a text symbol defined as a part of the text elements of the program. Using the syntax 'Literal'(idf) replaces these literals in the program if the symbol is in the currently loaded text pool.
I am trying to add a formal parameter in the FORM and PERFORM in an existing code, as I will be need it the extra parameter in a new function that I have to call. The idea is that when executing the new code it keeps showing the error: Different parameter count in FORM and PERFORM (routine: CM_SHOW_CRC, number of formal parameters: 2, number of actual parameters: 3).
The code that I have for the form part is as follows:
FORM cm_show_crc
USING
civ_matnr TYPE matnr
civ_charg TYPE charg_d
civ_werks TYPE werks_d. "The parameter that I added
And the perform code is:
PERFORM cm_show_crc
USING
pis_sdow_alv-matnr
pis_sdow_alv-charg
pis_sdow_alv-werks. "The parameter that I added
The table pis_sdow_alv is type of a structure that also includes the variable WERK(Component type WERKS_D)
Before adding the new parameter WERK the code was working fine.
May anyone know what the problem in this part of the code may be?
There was also another similar question in: Different number of parameters in FORM and PERFORM, however I am not using the syntax CHANGING in my code, as it was also not used prior.
Please do tell me if you need additional information.
Thank you all in advance!
This problem can occur when FORM and PERFORM are in different includes and you only activate one but not the other.
When you activate an include, then it is checked against the active version of all other repository objects it depends on. Not the saved version. This can lead to an annoying catch-22 situation. You can not activate A because it does not match the previous version of B, and you can not activate B because it does not match the previous version of A.
The solution to this conundrum is to activate both objects together. When you activate something in SE80 and you have multiple inactive objects, you get a window where you can select multiple objects to activate together:
In Eclipse, you get a similar list by clicking on the "activate multiple" button:
I am doing a simulation of a production line, which is built through Excel.
Now there is one, which needs free setting of worker shifts for each machine, three shifts in total.
My idea is to create three different Schedules, representing each of the three shifts, and then in the ResourcePool, use the If statement to set up the use of each shift. As shown in the picture enter image description here
But it didn't work. If it is possable, Could you please tell me if there is something wrong with the Java statement or the idea is wrong.
If possible, could you please tell me how to set multiple schedules in ResourcePool?
Additions to the question：
The model is to do the evaluation of the production system and the shift of the workers is an important evaluation parameter. What I want to do is to enter the shift of the workers directly in the Excel sheet and ResourcePool recognizes and uses the corresponding Schedule.
I tried to generate the corresponding Schedule by code, but the Schedule of Resourcepool cannot be set dynamically. So I would like to try to manually input multiple Schedules into the model and then set the corresponding Schedule in ResourcePool by If statement like the image.
Thanks in advance
The first thing you need to know is that the location where you placed the code is a static parameter, thus it is only evaluated once, when the object is created and not checked continuously.
This is indicated by the little popup when you hover over the button that change the entry field from code to value
If it was dynamic it would state Dynamic Value instead of Static Value
Secondly, inside that field you must use a ternary operator, not an if statement, so that the result of the formula is a scheduled object, else you will get a "misplaced construct(s)" error
If you changed the code to
v_Shift == "Shift1" ?
s_Shift1 : v_Shift == "Shift2" ? s_Shift2 : s_Shift3
It will work BUT:
It will only be evaluated when the object is created and not again
Rather not use == on Strings, always use .equals(), on Strings it might work, and sometimes it might not. You can do some research as to why ;-)
Solution: You will have to use a function to change the schedule of the resource pool. Call this function whenever the v_Shift variable changes
I did try using the RS_VARIANT_CONTENTS and RS_VARIANT_VALUES_TECH_DATA, it did show the values of the variant except the values of the name space, interface and interface version in which I also need to retrieve. I also searched the VARI* and TVARC tables but I didn't found it there.
I think it has something to do with the program name and screen number. Do you have any ideas or other way that I can retrieve all those values, whether using FM or select?
Thank you.
Some of the parameters in the transaction /AIF/ERR, the ones you are talking about, vary dynamically based on the value chosen in the Application screen field. They are handled by another AIF program, and they are not saved in the program variant, but in the table /AIF/T_ERR_VARS.
You may call the function module /AIF/ERR_VAR_LOAD to load the missing parameters.
Its usage is shown in the subroutine GET_VAR of the program /AIF/ERROR_HANDLING_TRANS (which is the program behind the transaction /AIF/ERR).
I have the following selection parameter:
PARAMETERS: p_ver(2) AS LISTBOX VISIBLE LENGTH 5.
I would like to populate it with the results from a ZECONFIG_VAR table.
At what point would I do this. Selection Screen Output, Start of Selection, or other. I am trying to allow users the ability to decide what version of the web service they would like to call. The config table will have different url's for the different versions.
I have looked at this Answer and the tutorial provided does not make sense to me.
I would do it at the event INITIALIZATION
However, it may be even easier to just create a search-help, and assign it to p_ver using the following:
parameters: p_ver(2) visible lenghth 5 MATCHCODE OBJECT zshelpname.
Esti is right that you probably want to fill an internal table from the DB table during INITIALIZATION.
But to the populate the listbox parameter, you need to put the call to VRM_SET_VALUES in AT SELECTION-SCREEN OUTPUT.