Dynamic Call to VIT that is a member of a LabVIEW Library (LVLIB)

Application is too complicated to post, so I will describe this in basic terms ..
Consider these VIs as members of an lvlib.
   Template.VIT
   Template Launcher.vi
   func1.vi
'Template.VIT' and 'Template Launcher.vi' are public members of the lvlib.
'func1' is a private member of the lvlib.
'func1.vi' is a subVI on the block diagram of 'Template.VIT '
'Template Launcher.vi' calls 'Template.VIT' dynamically. It gets a path to the VIT, uses that to Open a reference, then runs it with the 'Run VI' method.
Whenever you launch a VIT this way, it creates a new named instance (because it is a template) by appending a number to the VIT name. In this instance, let's call it 'Template 2.VIT'.
Here is the Problem: 'Template 2.VIT' is not executable because it does not have access to the private member of the llvlib, so it cannot call 'func1.vi' from the block diagram. It seems that the instance 'Template 2.VIT' is not a member of the lvlib. Block Diagram error reads...
"SubVI is private and cannot be accessed from this VI."
My question: Is there any way to make the new instance a member of the lv library?
I don't need a workaround, I need to know if this is possible. Perhaps a particualr switch when Open VI Reference is called, or a particualr property that can be changed?
Message Edited by ADAC on 01-16-2007 11:14 AM

Hi ADAC,
The short answer is no, you cannot do this. If you set the "Open VI Reference" option to 2, you can open the template itself and this will not have this problem. But if you need to create new instances of the template this will not work for you. You may be able to "work around" this (even though work around is a dirty word). It might be possible to programatically make a copy of this VI on disk and then programatically edit the lvlib file such that your new file is a member of the library. I haven't tried this myself so I'm not positive this would work but it might.
I hope this helps,
Justin D
Applications Engineer
National Instruments

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Solved!
Go to Solution.

Norbert B a écrit :
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Thank you very much for your help

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Hello Edgar
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[code]TYPES: BEGIN OF ty_s_outtab.
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TYPES: layout TYPE lvc_s_layo.
TYPES: variant TYPE disvariant.
TYPES: fcat TYPE lvc_t_fcat.
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 text
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ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT[/code]
The second ALV list which displays the table records is always newly displayed in the PBO module.
In the event handler method HANDLE_DOUBLE_CLICK we need to do two things:
- store the current fieldcatalog back to GT_OUTTAB
- store the name of the new selected table/structure -> trigger PAI
In routine HANDLE_DB_CLICK we create a new entry for GT_OUTTAB if it does not yet exist. Next we select this entry and display it again as second ALV list.
[code]
*& Report ZUS_SDN_TWO_ALV_GRIDS_8
*& Description: Display two ALV lists in splitter container (left/right)
*& Left ALV list contains DB table names,
*& right ALV list displays entries of selected DB table
*& SDN thread: Dynamical Call of ALV - No data update
*& Link: https:||Dynamical Call of ALV - No data update
*& Screen '0100' contains no elements.
*& ok_code -> assigned to GD_OKCODE
*& Flow logic:
PROCESS BEFORE OUTPUT.
 MODULE STATUS_0100.
PROCESS AFTER INPUT.
 MODULE USER_COMMAND_0100.
REPORT zus_sdn_two_alv_grids_8.
TYPE-POOLS: abap.
DATA:
gd_repid TYPE syst-repid,
gd_okcode TYPE ui_func,
go_docking TYPE REF TO cl_gui_docking_container,
go_splitter TYPE REF TO cl_gui_splitter_container,
go_cell_left TYPE REF TO cl_gui_container,
go_cell_right TYPE REF TO cl_gui_container,
go_grid1 TYPE REF TO cl_gui_alv_grid,
go_grid2 TYPE REF TO cl_gui_alv_grid,
gs_layout TYPE lvc_s_layo.
TYPES: BEGIN OF ty_s_outtab.
TYPES: tabname TYPE tabname.
TYPES: layout TYPE lvc_s_layo.
TYPES: variant TYPE disvariant.
TYPES: fcat TYPE lvc_t_fcat.
TYPES: data TYPE REF TO data.
TYPES: END OF ty_s_outtab.
TYPES: ty_t_outtab TYPE STANDARD TABLE OF ty_s_outtab
 WITH DEFAULT KEY.
DATA:
gt_dd02l TYPE STANDARD TABLE OF dd02l,
gs_outtab TYPE ty_s_outtab,
gt_outtab TYPE ty_t_outtab.
FIELD-SYMBOLS:
<gt_fcat> TYPE lvc_t_fcat,
<gt_outtab> TYPE table.
 CLASS lcl_eventhandler DEFINITION
CLASS lcl_eventhandler DEFINITION.
PUBLIC SECTION.
 CLASS-DATA:
 md_tabname_selected TYPE tabname READ-ONLY.
 CLASS-METHODS:
 handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
 IMPORTING
 e_row
 e_column
 es_row_no
 sender.
ENDCLASS. "lcl_eventhandler DEFINITION
 CLASS lcl_eventhandler IMPLEMENTATION
CLASS lcl_eventhandler IMPLEMENTATION.
METHOD handle_double_click.
define local data
 DATA:
 ls_dd02l TYPE dd02l,
 ls_outtab TYPE ty_s_outtab.
 CHECK ( sender = go_grid1 ).
 READ TABLE gt_dd02l INTO ls_dd02l INDEX e_row-index.
 " Store data of currently displayed ALV list (except for DD02L)
 IF ( md_tabname_selected = space ).
 ELSE.
 READ TABLE gt_outtab INTO ls_outtab
 WITH KEY tabname = md_tabname_selected. " old
 CALL METHOD go_grid2->get_frontend_fieldcatalog
 IMPORTING
 et_fieldcatalog = ls_outtab-fcat.
 MODIFY gt_outtab FROM ls_outtab INDEX syst-tabix.
 ENDIF.
 md_tabname_selected = ls_dd02l-tabname. " new selected DB table
Triggers PAI of the dynpro with the specified ok-code
 cl_gui_cfw=>set_new_ok_code( 'HANDLE_DB_CLICK' ). " not 4.6c
 CALL METHOD cl_gui_cfw=>set_new_ok_code
 EXPORTING
 new_code = 'HANDLE_DB_CLICK'
 IMPORTING
 RC =
ENDMETHOD. "handle_double_click
ENDCLASS. "lcl_eventhandler IMPLEMENTATION
START-OF-SELECTION.
gd_repid = syst-repid.
SELECT * FROM dd02l INTO TABLE gt_dd02l
 WHERE tabname LIKE 'KN%1' OR
 tabname LIKE 'LF%1' OR
 tabname LIKE 'VB%' OR
 tabname LIKE 'MAR%' OR
 tabname LIKE 'E07%'
 AND tabclass = 'TRANSP'. " transparent table
SORT gt_dd02l BY tabname.
PERFORM init_controls.
PERFORM add_first_table.
Set event handler
SET HANDLER:
 lcl_eventhandler=>handle_double_click FOR go_grid1.
READ TABLE gt_outtab INTO gs_outtab INDEX 1.
Display data
CALL METHOD go_grid1->set_table_for_first_display
 EXPORTING
 i_structure_name = gs_outtab-tabname
 is_layout = gs_outtab-layout
 CHANGING
 it_outtab = gt_dd02l
 EXCEPTIONS
 OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
READ TABLE gt_outtab INTO gs_outtab INDEX 2.
ASSIGN gs_outtab-fcat TO <gt_fcat>.
ASSIGN gs_outtab-data->* TO <gt_outtab>.
NOTE: method called in PBO module
CALL METHOD go_grid2->set_table_for_first_display
 EXPORTING
 i_structure_name = gs_outtab-tabname
 is_layout = gs_outtab-layout
 is_variant = gs_outtab-variant
 i_save = 'A'
 CHANGING
 it_outtab = <gt_outtab>
 it_fieldcatalog = <gt_fcat>
 EXCEPTIONS
 OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Link the docking container to the target dynpro
CALL METHOD go_docking->link
 EXPORTING
 repid = gd_repid
 dynnr = '0100'
 CONTAINER =
 EXCEPTIONS
 OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
NOTE: dynpro does not contain any elements
CALL SCREEN '0100'.
Flow logic of dynpro (does not contain any dynpro elements):
*PROCESS BEFORE OUTPUT.
MODULE STATUS_0100.
*PROCESS AFTER INPUT.
MODULE USER_COMMAND_0100.
END-OF-SELECTION.
*& Module STATUS_0100 OUTPUT
 text
MODULE status_0100 OUTPUT.
SET PF-STATUS 'STATUS_0100'. " contains push button "DETAIL"
SET TITLEBAR 'xxx'.
CALL METHOD go_grid2->set_table_for_first_display
 EXPORTING
 i_structure_name = gs_outtab-tabname
 is_layout = gs_outtab-layout
 is_variant = gs_outtab-variant
 i_save = 'A'
 CHANGING
 it_outtab = <gt_outtab>
 it_fieldcatalog = <gt_fcat>
 EXCEPTIONS
 OTHERS = 4.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT
*& Module USER_COMMAND_0100 INPUT
 text
MODULE user_command_0100 INPUT.
CASE gd_okcode.
 WHEN 'BACK' OR
 'END' OR
 'CANC'.
 SET SCREEN 0. LEAVE SCREEN.
User has pushed button "Display Details"
 WHEN 'HANDLE_DB_CLICK'.
 PERFORM handle_db_click.
 WHEN OTHERS.
ENDCASE.
CLEAR: gd_okcode.
ENDMODULE. " USER_COMMAND_0100 INPUT
*& Form HANDLE_DB_CLICK
 text
--> p1 text
<-- p2 text
FORM handle_db_click.
define local data
DATA:
 ld_handle(4) TYPE n,
 ls_outtab TYPE ty_s_outtab.
READ TABLE gt_outtab INTO ls_outtab
 WITH KEY tabname = lcl_eventhandler=>md_tabname_selected.
IF ( syst-subrc NE 0 ).
 CLEAR: ls_outtab.
 ls_outtab-tabname = lcl_eventhandler=>md_tabname_selected.
 CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
 EXPORTING
 I_BUFFER_ACTIVE =
 i_structure_name = ls_outtab-tabname
 I_CLIENT_NEVER_DISPLAY = 'X'
 I_BYPASSING_BUFFER =
 I_INTERNAL_TABNAME =
 CHANGING
 ct_fieldcat = ls_outtab-fcat
 EXCEPTIONS
 inconsistent_interface = 1
 program_error = 2
 OTHERS = 3.
 IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
 ENDIF.
 CREATE DATA ls_outtab-data TYPE TABLE OF (ls_outtab-tabname).
 ASSIGN ls_outtab-data->* TO <gt_outtab>.
 SELECT * FROM (ls_outtab-tabname) UP TO 50 ROWS
 INTO TABLE <gt_outtab>.
 ls_outtab-layout-no_toolbar = abap_false.
 ls_outtab-layout-zebra = abap_true.
 ls_outtab-layout-smalltitle = abap_true.
 CONCATENATE ls_outtab-tabname ':'
 INTO ls_outtab-layout-grid_title.
 CONCATENATE ls_outtab-layout-grid_title 'Table Records'
 INTO ls_outtab-layout-grid_title
 SEPARATED BY space.
 ls_outtab-variant-report = gd_repid.
 DESCRIBE TABLE gt_outtab.
 ld_handle = syst-tfill + 1.
 WRITE ld_handle TO ls_outtab-variant-handle. " $TMP: Problem!!!
 APPEND ls_outtab TO gt_outtab.
ENDIF.
" NOTE: read into GLOBAL variable gs_outtab !!!!
READ TABLE gt_outtab INTO gs_outtab
 WITH KEY tabname = lcl_eventhandler=>md_tabname_selected.
ASSIGN gs_outtab-fcat TO <gt_fcat>.
ASSIGN gs_outtab-data->* TO <gt_outtab>.
ENDFORM. " HANDLE_DB_CLICK
*& Form INIT_CONTROLS
 text
--> p1 text
<-- p2 text
FORM init_controls .
Create docking container
CREATE OBJECT go_docking
 EXPORTING
 parent = cl_gui_container=>screen0
 ratio = 90
 EXCEPTIONS
 OTHERS = 6.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD go_docking->set_extension
 EXPORTING
 extension = 99999 " full-size screen
 EXCEPTIONS
 cntl_error = 1
 OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Create splitter container
CREATE OBJECT go_splitter
 EXPORTING
 parent = go_docking
 rows = 1
 columns = 2
 NO_AUTODEF_PROGID_DYNNR =
 NAME =
 EXCEPTIONS
 cntl_error = 1
 cntl_system_error = 2
 OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Get cell container
CALL METHOD go_splitter->get_container
 EXPORTING
 row = 1
 column = 1
 RECEIVING
 container = go_cell_left.
CALL METHOD go_splitter->get_container
 EXPORTING
 row = 1
 column = 2
 RECEIVING
 container = go_cell_right.
CALL METHOD go_splitter->set_column_mode
 EXPORTING
 mode = cl_gui_splitter_container=>mode_relative
 IMPORTING
 RESULT =
 EXCEPTIONS
 cntl_error = 1
 cntl_system_error = 2
 OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD go_splitter->set_column_width
 EXPORTING
 id = 1
 width = 25
 IMPORTING
 RESULT =
 EXCEPTIONS
 cntl_error = 1
 cntl_system_error = 2
 OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD go_splitter->set_column_sash
 EXPORTING
 id = 1
 type = cl_gui_splitter_container=>type_movable
 value = cl_gui_splitter_container=>false
 IMPORTING
 RESULT =
 EXCEPTIONS
 cntl_error = 1
 cntl_system_error = 2
 OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
Create ALV grids
CREATE OBJECT go_grid1
 EXPORTING
 i_parent = go_cell_left
 EXCEPTIONS
 OTHERS = 5.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CREATE OBJECT go_grid2
 EXPORTING
 i_parent = go_cell_right
 EXCEPTIONS
 OTHERS = 5.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDFORM. " INIT_CONTROLS
*& Form ADD_FIRST_TABLE
 text
--> p1 text
<-- p2 text
FORM add_first_table .
define local data
DATA:
 ls_outtab TYPE ty_s_outtab.
ls_outtab-tabname = 'DD02L'.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
I_BUFFER_ACTIVE =
 i_structure_name = ls_outtab-tabname
I_CLIENT_NEVER_DISPLAY = 'X'
I_BYPASSING_BUFFER =
I_INTERNAL_TABNAME =
CHANGING
 ct_fieldcat = ls_outtab-fcat
EXCEPTIONS
 inconsistent_interface = 1
 program_error = 2
 OTHERS = 3.
IF sy-subrc <> 0.
*MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
GET REFERENCE OF gt_dd02l INTO ls_outtab-data.
ls_outtab-layout-no_toolbar = abap_false.
ls_outtab-layout-zebra = abap_true.
ls_outtab-layout-smalltitle = abap_true.
CONCATENATE ls_outtab-tabname ':'
 INTO ls_outtab-layout-grid_title.
CONCATENATE ls_outtab-layout-grid_title 'Table Records'
 INTO ls_outtab-layout-grid_title
 SEPARATED BY space.
ls_outtab-variant-report = gd_repid.
ls_outtab-variant-handle = '0002'.
INSERT ls_outtab INTO gt_outtab INDEX 1.
ls_outtab-layout-no_toolbar = abap_true.
ls_outtab-layout-zebra = abap_true.
ls_outtab-layout-smalltitle = abap_true.
ls_outtab-layout-grid_title = 'DB Tables'.
ls_outtab-variant-report = gd_repid.
ls_outtab-variant-handle = '0001'.
DELETE ls_outtab-fcat WHERE ( fieldname NE 'TABNAME' ).
INSERT ls_outtab INTO gt_outtab INDEX 1.
ENDFORM. " ADD_FIRST_TABLE[/code]
Regards,
Uwe

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