Go_item doesnot work in a control block having all display items

Hi
go_item bulitin doesnot work for a block which doesnot have any enabled items(or say display items only) throwing error " No items on the navigation block".
The requirement is to have all items in that block should be display items only.
Is there any workaround?
Thanks in advance.

Create a navigable item in the block where cursor focus can be placed. I usually make it a visible text item with very narrow width -- just enough so the user can see the cursor blinking.
Or else make one of your display items a text item, but with update allowed set to No.
...but why are you using Go_Item if the item is not an updateable field?

Similar Messages

Do Controls/Indicators in all display tabs get updated even if not visible?

I have a pretty simple Labview VI that I need to run at a 10 ms loop. Currently, I can only get it to run at 17 ms. It has a RS422 that has to send and receive a message every 10 ms. I have a lot of troubleshooting indicators on a Debug Tab. I am wondering if these indicators are being updated even though they are not on the currently displayed tab. If so, will changing the "visible" property node of all these indicators speed up execution?
Thanks,
Solved!
Go to Solution.

Hello tootalled,
Do you happen to have synchronous display enabled? In most applications, having asynchronous display enabled significantly speed up execution without affecting what the user sees. For example, you can update a Boolean value hundreds of times in a second, which is more updates than the human eye can discern. Asynchronous displays permit the execution system to spend more time executing VIs, with updates automatically reduced to a slower rate by the user interface thread.
If you want asynchronous displays, right-click the control or indicator and select Advanced»Synchronous Display from the shortcut menu to uncheck the menu item.
Please see this document regarding VI execution speed: http://zone.ni.com/reference/en-XX/help/371361H-01/lvconcepts/vi_execution_speed/
Like crossrulz said, I also recommend using the Producer/consumer architecture. This way, you can process your data in one loop, pass the data via a queue, and update your indicators in a separate loop that does not affect the speed of your processing vi.
K. Anderson
Applications Engineer
National Instruments

Is it possible to update (=change) control block items in a query only form ?

From Form.A we call Form.B with the parameter query_mode = query_only.
This works fine.
But in Form.B we have a non table block (=control block) with an poplist item.
Allthough in query_only mode we like to change (it's not a real update cause it's control block) the poplist.
But because of query_only mode this item is not updateable.
Is there a workaround to make the poplist updateable in query_only mode ?

Hi,
It is not possible to change the BOX position using the Layout painter like changing windows position.
You have change in the page Windows text elements only by changing their co ordinates.
Regards,
Anji

SOS Help!! Control Block is hitting me on my nerves....

Hello All!
I have a problem and id any body can solve this then i will be very thankful to her/him.
Actually, i have four tables.One of them(studentfee) has two primary keys.(Rollono & Date)in this table the rollno is both PK & FK which reference the rollno of student table.Now problem is that i have a control block and two txt items on it. One is for Month and is used to add the date in the studentfee table and other fields will be added by mean of another data block.And that is the problem bcs the form generate the error(may be bcs other primary key is not entered).
I think that this problem can be solved by Global variable(assigning the values to Golbal variable in the control block form
and referencing them in the data block form)
but this is not helping,too.Now i know
that i am doing something wrong but couldn't grasp that one.Either i am not generating right code for Global variables OR am starting another session that is why the form is unable to get information from the global variable when i use it in the next form.
Another question is that: Is there any way to build an .exe Or other file of my
project which can be run and be ported to another machine(with all tables and data).
Please, send me the answer to my email or to the oracle site and i will be very thankul to you. Bye..
[email protected]

Hi,
In one block you can have items EXPLECITELLY belonging to only one DB table. You mention this table in the property palette of the block.
If your block has items which belong to other DB table one way (but not the only way) to work around is with POST_QUERY trigger using primarykey_foreignkey (or other) relation to insert in the item the appropriate value. If there are many values we use master-detail relationships and second block.
Do not forget before exiting the block to insert, update, delete ,etc. the changed value belonging to different tables using the PRE_INSERT, PRE_UPDATE, ... etc. triggers.
Try to by a book explaining the Forms principles and methods.
Keep in eye that Forms is a complex, very complex software tool. Before using them successful you have to invest time and efforts to study the basic solution methods.
Success!
Joseph Schwertner,
Prof.Dr. In Computer Science

Execute query in control block?

I have a non database block which is the control block. In this block i have a button for query/ enter query. My other blocks are all based on a database table. So when i run the form and press the exec query button, on the control block, i want to be able to select something from an lov, or a drop down or even a text item which are located on any of the other blocks. and then hit the exec query button again to query the specific information.
But its not working. i can't seem to get the exec query button to work in the control block and i tried placing it on one of the blocks but i can only select from that block to query on and not any of the other blocks.
how can i get the exec query button to work on any of the other blocks depending on what i want to query up?

You will have to build a default where clause in the pre query trigger of the base table block(s)
example shown below.
declare
wh_clause varchar2(1500);
begin
if :qry_blk.item1 is not null then
wh_clause := 'block.item1 like '''||:qry_blk.item1||'%'||'''';
end if;
set_block_property('block', DEFAULT_WHERE, wh_clause);
end;
then in your button, you will say
go_block('block');
execute_query;
I have a non database block which is the control block. In this block i have a button for query/ enter query. My other blocks are all based on a database table. So when i run the form and press the exec query button, on the control block, i want to be able to select something from an lov, or a drop down or even a text item which are located on any of the other blocks. and then hit the exec query button again to query the specific information.
But its not working. i can't seem to get the exec query button to work in the control block and i tried placing it on one of the blocks but i can only select from that block to query on and not any of the other blocks.
how can i get the exec query button to work on any of the other blocks depending on what i want to query up?

Control blocks/MS Help problem

When using control blocks in generated forms/Headstart, you're
required to give them an alias of qms$ctrl.
If you then try to generate MS help for the form, it doesn't
work for the control block. Think it's because of the '$'
character, looks like this is a significant symbol to the MS
help compiler.
Any ideas for a fix/workaround?
null

Cheryl Riley (guest) wrote:
: When using control blocks in generated forms/Headstart, you're
: required to give them an alias of qms$ctrl.
: If you then try to generate MS help for the form, it doesn't
: work for the control block. Think it's because of the '$'
: character, looks like this is a significant symbol to the MS
: help compiler.
: Any ideas for a fix/workaround?
Cheryl,
This is a known issue for Headstart for Designer 1.3.2. The work
around is the following:
1. change the following initialization command in qms$init_appl
in your application library (or qmslib34 if you don't have such a
library):
l_control_block varchar2(50) := 'QMS$CTRL';
should read
l_control_block varchar2(50) := 'QMS_CTRL';
2. Make the same name change to all your existing control block
definitions in Designer and regenerate those modules.
null

Populating Control Block

I've got a Form consisting of two blocks: Master and Control.
Control block suppose to display various calculations based on
the Master block items and other tables.
I tried the POST_QUERY trigger to perform that task and it
didn't work.
Any ideas what kind of trigger should I use in that case???

Did you use the post query on the master block?

Play, rewind and forward don't work in the control center in ios7

My play, rewind and forward buttons are not working in the control center at all but working fine everywhere else

try restarting or resetting your iphone /
http://support.apple.com/kb/HT1430

HT5858 i love the new software update, but my music keys don't work in the control center on lock screen.is it a bug? how can i fix it?

i updated to iOS 7 and everything was fine.couple a days later the music keys just stopped working in the control center at all. how can i fix this?

Hello jojohussein92,
Thank you for using Apple Support Communities!
I have a couple of recommendations for this issue. First is to force quit all the open apps on the iPhone:
Double-click the Home button.
Swipe left or right until you have located the app you wish to close.
Swipe the app up to close it.
From: iOS: Force an app to close
http://support.apple.com/kb/ht5137
When you have all the apps closed, restart the iPhone:
iOS: Turning off and on (restarting) and resetting
http://support.apple.com/kb/ht1430
If the issue persists after that, then I would try resetting the iPhone.
If your device stops responding, you can reset it by pressing and holding both the Sleep/Wake and Home buttons for at least ten seconds, until the Apple logo appears.
Lastly if the issue persists, then I would backup the phone to iTunes, and then before restoring from your backup, I would test the issue. If it works, then restore your backup, and verify the Control Center is still working.
iOS: How to back up and restore your content
http://support.apple.com/kb/HT1766
Take care,
Sterling

One or more ActiveX controls could not be displayed because either:1 your current security settings prohibit running ActiveX controls on this page, or 2. You have blocked a publisher of one of the controls.

hi All,
i have one of the requirement for an application, we do upload some release not in file server and that is used in application link to see the note. in this note i have converted the Excel into .HTM format(web page). this was working fine, but from last
two days all of a sudden we are recieving error as above.
one or more ActiveX controls could not be displayed because either:1 your current security settings prohibit running ActiveX controls on this page, or 2. You have blocked a publisher of one of the controls.
could anyone please help me on this.
Thanks and Regards,
krishnamurthy

Hi,
Actually Arnavsharma provided a operable method for you. But no luck, it's not invalid.
Here I also offer you an method you can try.Please delete the extra (parasite) zone from the Zones subkey :
Click Start , click Run , type regedit , and then click OK
Expand the following registry subkey
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones
Delete the extra (parasite) zone from the Zones subkey
Note: The parasite zone is a pseudo-graphic number listed before zone number 0. The pseudo-graphic number looks like a miniature upper case "L"
Close the registry editor
Thanks!
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

How to clear a record of control block

i have one control block with 2 items and the Max. records displayed property is set to 10.I have populated 5 records and now i want to clear one record, but the clear_record statement does not seem to be working. How to clear a record in a control block. Please help me out in this doubt of mine.

You have probably moved focus to another block. You have to go_block and maybe go_record before using clear_block.

Problem while working wwith tree control

hi all
i am working with tree control the prolems i have been facing are
i am not able o get the event for a single click on the tree node .
i am displaying the purchase order in the tree and once i select on sinlge click a purchase order ,now i want to create the sales order on the another screen and once i click on the button it should call another screen on which i have to create the sales order ,
please help

hi gandhivarun,
i am posting the code which will give idea on Tree display.
REPORT ZALVGRID_PG.
TABLES: SSCRFIELDS.
DATA: V_BELNR TYPE RBKP-BELNR.
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
SELECT-OPTIONS: IRNO FOR V_BELNR.
PARAMETERS: P_GJAHR TYPE RBKP-GJAHR.
SELECTION-SCREEN END OF BLOCK B1.
DATA: WA TYPE ZALVGRID_DISPLAY,
      ITAB TYPE STANDARD TABLE OF ZALVGRID_DISPLAY.
DATA: IDENTITY TYPE REF TO CL_GUI_CUSTOM_CONTAINER.
DATA: GRID TYPE REF TO CL_GUI_ALV_GRID.
DATA: L_IDENTITY TYPE REF TO CL_GUI_CUSTOM_CONTAINER.
DATA: L_TREE TYPE REF TO CL_GUI_ALV_TREE_SIMPLE.
TYPE-POOLS: SLIS,SDYDO.
DATA: L_LOGO TYPE SDYDO_VALUE,
      L_LIST TYPE SLIS_T_LISTHEADER.
END-OF-SELECTION.
CLASS CL_LC DEFINITION.
PUBLIC SECTION.
    METHODS: DC FOR EVENT DOUBLE_CLICK OF CL_GUI_ALV_GRID IMPORTING E_ROW E_COLUMN.
ENDCLASS.
CLASS CL_LC IMPLEMENTATION.
METHOD DC.
    DATA: WA1 TYPE ZALVGRID_DISPLAY.
    READ TABLE ITAB INTO WA1 INDEX E_ROW-INDEX.
    BREAK-POINT.
    SET PARAMETER ID 'BLN' FIELD WA1-BELNR.
    CALL TRANSACTION 'FB02'.
ENDMETHOD.                    "DC
ENDCLASS.
DATA: OBJ_CL TYPE REF TO CL_LC.
START-OF-SELECTION.
PERFORM SELECT_DATA.
IF SY-SUBRC = 0.
    CALL SCREEN 100.
ELSE.
    MESSAGE E000(0) WITH 'DATA NOT FOUND'.
ENDIF.
INCLUDE ZALVGRID_PG_STATUS_0100O01.
INCLUDE ZALVGRID_PG_LOGOSUBF01.
INCLUDE ZALVGRID_PG_SELECT_DATAF01.
INCLUDE ZALVGRID_PG_USER_COMMAND_01I01.
***INCLUDE ZALVGRID_PG_STATUS_0100O01 .
MODULE STATUS_0100 OUTPUT.
SET PF-STATUS 'AB'.
* SET TITLEBAR 'xxx'.
IF IDENTITY IS INITIAL.
    CREATE OBJECT IDENTITY
    EXPORTING
      CONTAINER_NAME = 'ALVCONTROL'.
    CREATE OBJECT GRID
    EXPORTING
      I_PARENT = IDENTITY.
    CALL METHOD GRID->SET_TABLE_FOR_FIRST_DISPLAY
      EXPORTING
         I_STRUCTURE_NAME              = 'ZALVGRID_DISPLAY'
      CHANGING
        IT_OUTTAB                     = ITAB.
    CREATE OBJECT OBJ_CL.
    SET HANDLER OBJ_CL->DC FOR GRID.
    ENDIF.
    IF L_IDENTITY IS INITIAL.
      CREATE OBJECT L_IDENTITY
      EXPORTING
        CONTAINER_NAME = 'LOGO'
      CREATE OBJECT L_TREE
      EXPORTING
        I_PARENT = L_IDENTITY.
      PERFORM LOGOSUB USING L_LOGO.
      CALL METHOD L_TREE->CREATE_REPORT_HEADER
        EXPORTING
          IT_LIST_COMMENTARY    = L_LIST
          I_LOGO                = L_LOGO.
     ENDIF    .
ENDMODULE.                 " STATUS_0100 OUTPUT
***INCLUDE ZALVGRID_PG_LOGOSUBF01 .
FORM LOGOSUB USING    P_L_LOGO.
P_L_LOGO = 'ERPLOGO'.
ENDFORM.                    " LOGOSUB
***INCLUDE ZALVGRID_PG_SELECT_DATAF01 .
FORM SELECT_DATA .
SELECT RBKP~BELNR
         RBKP~BLDAT
         RSEG~BUZEI
         RSEG~MATNR
         INTO TABLE ITAB
         FROM RBKP INNER JOIN RSEG
    ON RBKP~BELNR = RSEG~BELNR
    WHERE RBKP~BELNR IN IRNO
    AND RBKP~GJAHR = P_GJAHR.
ENDFORM.                    " SELECT_DATA
***INCLUDE ZALVGRID_PG_USER_COMMAND_01I01 .
CASE SY-UCOMM.
    WHEN 'EXIT'.
      LEAVE PROGRAM.
    WHEN 'CANCEL'.
       EXIT.
       ENDCASE.
ENDMODULE.                 " USER_COMMAND_0100 INPUT
Warm Ragrds,
PavanKumar.G
Edited by: pavankumar.g on Jan 30, 2012 11:02 AM

Using a control item in the control block

I want to do; using a control item in the control block, I can control the item in the detail block and I can navigate anywhere in the detail block on the condition.
For example, I have a master block ,a detail block,a control block.
before move the focus from the mater block to the detail block, the focus goes to the item in the control block and run a trigger and set properties for the items in the detail block, then navigate to the item in the detail block using go_item(?).
Is it possible? if possible would you give me some example or idea?
thanks a lot.

well u can.May be you want to perform add / delete/ update through your buttons in forms

Db_checkpoint: Unable to allocate thread control block

Hello,
Every second day BDB 4.8 runs out of cache memory (size = 512MB).
We have 10 static worker processes (no segfaults) and one
db_checkpoint-process (checkpoints once a minute and exists).
We use only DB_WRITE_NOSYNC
After two days the db_checkpoint-process reports:
db_checkpoint: Unable to allocate thread control block
As soon as this error apears, I can neither checkpoint nor
db_recover.
Is there any chance (or a patch) to track down the memory leak?
Thanks

Hi Sandra,
It happened again one hour ago. I had hardly problems with BDB 4.6
Down below you will find a current "db_stat -e"
We have 10 workers with persistent db-connection and once a minute
a cronjob starts a checkpoint, then the cron-process exists.
Every second day (40 to 48 hours) the checkpoint-process can't connect
to the database and "db_checkpoint -1" says:
db_checkpoint: Unable to allocate thread control block
A normal "db_recover" would corrupt the database, I had to recover
catastrophic.
For sure the cache is not to small (512 MB, all database files: 1,3 GB)
Thanks
Markus
Mon Nov 30 17:32:44 2009 Local time
0x120897 Magic number
0 Panic value
4.8.24 Environment version
9 Btree version
9 Hash version
1 Lock version
15 Log version
4 Queue version
2 Sequence version
1 Txn version
Mon Nov 30 16:31:06 2009 Creation time
0x9d316701 Environment ID
2 Primary region allocation and reference count mutex [0/360 0% !Own]
11 References
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Thread tracking information
75 Thread blocks allocated
4096 Thread allocation threshold
521 Thread hash buckets
Thread status blocks:
process/thread 5055/3086948768: out
process/thread 5686/3086850464: out
[...snip...]
process/thread 6056/3086653856: out
process/thread 6087/3086649760: out
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
0x40988 Log magic number
15 Log version number
16MB Log record cache size
0 Log file mode
10Mb Current log file size
370618 Records entered into the log
370MB 354KB 853B Log bytes written
4MB 466KB 1001B Log bytes written since last checkpoint
17691 Total log file I/O writes
0 Total log file I/O writes due to overflow
198 Total log file flushes
665 Total log file I/O reads
1786 Current log file number
8303086 Current log file offset
1786 On-disk log file number
3630597 On-disk log file offset
1 Maximum commits in a log flush
1 Minimum commits in a log flush
17MB Log region size
9 The number of region locks that required waiting (0%)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
5387 Last allocated locker ID
0x7fffffff Current maximum unused locker ID
9 Number of lock modes
131072 Maximum number of locks possible
131072 Maximum number of lockers possible
131072 Maximum number of lock objects possible
30 Number of lock object partitions
622 Number of current locks
797 Maximum number of locks at any one time
13 Maximum number of locks in any one bucket
0 Maximum number of locks stolen by for an empty partition
0 Maximum number of locks stolen for any one partition
632 Number of current lockers
708 Maximum number of lockers at any one time
69 Number of current lock objects
160 Maximum number of lock objects at any one time
2 Maximum number of lock objects in any one bucket
0 Maximum number of objects stolen by for an empty partition
0 Maximum number of objects stolen for any one partition
13M Total number of locks requested (13372706)
13M Total number of locks released (13372083)
0 Total number of locks upgraded
5313 Total number of locks downgraded
9 Lock requests not available due to conflicts, for which we waited
1 Lock requests not available due to conflicts, for which we did not wait
0 Number of deadlocks
60M Lock timeout value (60000000)
0 Number of locks that have timed out
60M Transaction timeout value (60000000)
0 Number of transactions that have timed out
66MB 904KB The size of the lock region
2141 The number of partition locks that required waiting (0%)
465 The maximum number of times any partition lock was waited for (0%)
0 The number of object queue operations that required waiting (0%)
3 The number of locker allocations that required waiting (0%)
0 The number of region locks that required waiting (0%)
2 Maximum hash bucket length
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
320MB 1KB 604B Total cache size
1 Number of caches
1 Maximum number of caches
320MB 8KB Pool individual cache size
0 Maximum memory-mapped file size
0 Maximum open file descriptors
0 Maximum sequential buffer writes
0 Sleep after writing maximum sequential buffers
0 Requested pages mapped into the process' address space
17M Requested pages found in the cache (99%)
71264 Requested pages not found in the cache
67 Pages created in the cache
71264 Pages read into the cache
17944 Pages written from the cache to the backing file
0 Clean pages forced from the cache
0 Dirty pages forced from the cache
0 Dirty pages written by trickle-sync thread
71298 Current total page count
71014 Current clean page count
284 Current dirty page count
32771 Number of hash buckets used for page location
4096 Assumed page size used
16M Total number of times hash chains searched for a page (16751183)
8 The longest hash chain searched for a page
39M Total number of hash chain entries checked for page (39437498)
0 The number of hash bucket locks that required waiting (0%)
0 The maximum number of times any hash bucket lock was waited for (0%)
7 The number of region locks that required waiting (0%)
0 The number of buffers frozen
0 The number of buffers thawed
0 The number of frozen buffers freed
71627 The number of page allocations
0 The number of hash buckets examined during allocations
0 The maximum number of hash buckets examined for an allocation
0 The number of pages examined during allocations
0 The max number of pages examined for an allocation
0 Threads waited on page I/O
0 The number of times a sync is interrupted
Pool File: article.db
4096 Page size
0 Requested pages mapped into the process' address space
1868517 Requested pages found in the cache (99%)
13311 Requested pages not found in the cache
0 Pages created in the cache
13311 Pages read into the cache
3428 Pages written from the cache to the backing file
[...snip...]
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1786/3630541 File/offset for last checkpoint LSN
Mon Nov 30 17:32:01 2009 Checkpoint timestamp
0x8000675a Last transaction ID allocated
4096 Maximum number of active transactions configured
0 Active transactions
3 Maximum active transactions
26458 Number of transactions begun
0 Number of transactions aborted
26458 Number of transactions committed
0 Snapshot transactions
0 Maximum snapshot transactions
0 Number of transactions restored
1MB 192KB Transaction region size
0 The number of region locks that required waiting (0%)
Active transactions:
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
31MB 32KB Mutex region size
3 The number of region locks that required waiting (0%)
4 Mutex alignment
150 Mutex test-and-set spins
254163 Mutex total count
149165 Mutex free count
104998 Mutex in-use count
104998 Mutex maximum in-use count
Mutex counts
149165 Unallocated
1 env region
33 lock region
797 logical lock
1 log filename
1 log flush
1 log region
74 mpoolfile handle
71298 mpool buffer
17 mpool file bucket
32771 mpool hash bucket
1 mpool region
1 mutex region
1 transaction checkpoint
1 txn region

TS3899 sometimes my sound doesnot work.i m using 4s

hi i have been isuing iphone 4s nearly 2 years.i m enjoying with the phone.but last month i was upset with the sound service.suddenly the sound doesnot work .i cant hear any song or ring tone.even though the sound key does not work.after half an hour the sound comes again.the problem occur almost every day.i m staying now in bangladesh.thesomethingre are no applle store in our country.my phone is my besr frnd but now it often make ****** me off.plz do somthing plz

Hello muzaherul hoque,
I would start troubleshooting your iPhone with the following steps:
Verify that there is nothing plugged in to the headset jack, including headsets, headphones, or adapters.
Make sure the Ring/Silent switch is not switched to silent.
While on the Home screen, adjust the volume buttons. If you see the icon below, indicating that headphones are attached, there may be debris or an object lodged in the headset jack:
Check the headset jack. If there is an object lodged in the headset jack that is not easily removed, have the iPhone serviced to remove object.
For Original iPhone: If there is light debris, such as lint, in the headset jack, try connecting a pair of headphones to the headset jack and then remove the headphones. Repeat this several times to remove the debris.
If you have installed a protective film on the display, either ensure that the receiver is not covered or remove the film completely.
Check the receiver mesh (which is on the top front of the device, above the display). If it appears blocked, use a clean, small, dry, soft-bristled brush to carefully and gently brush away any debris.
If you have paired with a Bluetooth headset that is nearby, either use the headset or turn Bluetooth off (choose Settings > General > Bluetooth).
Restart the iPhone.
If restarting the iPhone doesn't resolve the issue, try restoring the device.
If the issue persists, go to the Service Answer Center - iPhone for information on service.
via: iPhone: Can't hear through the receiver or speakers
http://support.apple.com/kb/TS1630
Sincerely,
Delgadoh

Go_item doesnot work in a control block having all display items

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