Tabstrip and ALV component inside filtering problem

Hi Gurus,
A very weird issue I have with a tasbtrip that contains three tabs, on each tab I'm embedding an ALV component, my issue is with standar Filter button of ALV. It doesn't work properly on the TAB1 and TAB2, but if we click on TAB3 the ALV is filtering properly... I've done the test deleting two tabs and with just one filtering is working fine...
Any idea?
Thank you!

Hi Lekka,
In fact I had the same NODE to three ALV component usages, so I had to differenciate each node for each component usage.
Thank you for your help.
Regards

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Web Dynpro ABAP - Select Option and ALV Component Usage

Hi,
I'm new in ABAP Web Dynpro and i was trying to follow the SDN tutorial
Web Dynpro ABAP - Select Option and ALV Component Usage
In this video, we create a new Web Dynpro ABAP component that uses both Select Options and ALV. Developers can learn the basic mechanisms for working with both of these reusable components.
Following the link: https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/media/uuid/39c54fe7-0b01-0010-0eb6-d63ac2bdd637
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Note
The following error text was processed in the system ECD : Exception condition "TYPE_NOT_FOUND" raised.
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I went in debug and the piece of code dumping is:
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Hi,
I'm new in ABAP Web Dynpro and i was trying to follow the SDN tutorial
Web Dynpro ABAP - Select Option and ALV Component Usage
In this video, we create a new Web Dynpro ABAP component that uses both Select Options and ALV. Developers can learn the basic mechanisms for working with both of these reusable components.
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an error as
Note
The following error text was processed in the system EI6 : Exception condition "TYPE_NOT_FOUND" raised.
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The ABAP call stack was:
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I have created a table zmy_table and trying to make USERID field as a select-options.I've written the code as shown below .
data: itab type standard table of zmy_table,
wa type zmy_table.
data:
node_employee type ref to if_wd_context_node,
elem_employee type ref to if_wd_context_element,
stru_employee type wd_this->element_employee ,
item_userid like stru_employee-userid.
navigate from <CONTEXT> to <EMPLOYEE> via lead selection
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if ( node_employee is initial ).
endif.
get element via lead selection
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alternative access via index
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Dynamic Tabstrip and Alv's

Hi All,
My requirement is like that dynamically i have to create tabstrip and in that each tab has Alv table to disply the data.
Regards,
Rajesh.

Hi,
To dynamically include an ALV additionally, you would have to do the following:
1. First declare the component usage for the ALV in your component, so that you can instantiate and use the ALV
2. Within the tab, you will have to dynamically also create a viewcontainerUIelement dynamically (similar way as you have dynamically created the tabstrip) - try using CL_WD_VIEW_CONTAINER_UIELEMENT.
3. You will have to dynamically embed the ALV component in viewcontainerUIelement created in (2). Try going thru
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
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Regards,
Wenonah

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Hi,
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Hi Kabil,
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Hey Shotdawq,
I was a bit low on bandwidth, so could not visit the forum any sooner.DIS is dynamic integration studio, it works on the webdav protocol.
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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
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#Click the "Reset Firefox" button.
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Hi,
I am writing a pgm on tabstrip in alv, for that i searched in website , i got a material in the website , i wrote the same pgm but iam getting an error in that program.
In screen 9001
PROCESS BEFORE OUTPUT.
MODULE STATUS_9001.
MODULE main_tab_active_tab_set.
CALL SUBSCREEN main_tab_sca
INCLUDING i_main_tab-subscreen.
PROCESS AFTER INPUT.
MODULE USER_COMMAND_9001.
MODULE main_tab_active_tab_get.
MODULE main_tab_active_tab_set.
in this program iam getting an error
error
statement concluding with "i_main_tab-subscreen" ended unexpectedly.
whats the error in that program

Hi.
Please try.
Add program.
or
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Refer to the following.
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Hi Vanbelal,
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Thanks & Regards,
Raghuram K.R.

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Hello Friends,
Can anybody help me in finding out the difference between ALV Function Modules and ALV methods?
Thanks & Regards
Sathish Kumar

Hi Sathish,
Plz go through this info. It is very useful.
hi,
chk these excellent links.
http://www.geocities.com/mpioud/Abap_programs.html
http://www.sapdevelopment.co.uk/reporting/reportinghome.htm
Simple ALV report
http://www.sapgenie.com/abap/controls/alvgrid.htm
http://wiki.ittoolbox.com/index.php/Code:Ultimate_ALV_table_toolbox
http://www.sapgenie.com/abap/controls/alvgrid.htm
http://wiki.ittoolbox.com/index.php/Code:Ultimate_ALV_table_toolbox
ALV
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http://www.sapfans.com/forums/viewtopic.php?t=58286
http://www.sapfans.com/forums/viewtopic.php?t=76490
http://www.sapfans.com/forums/viewtopic.php?t=20591
http://www.sapfans.com/forums/viewtopic.php?t=66305 - this one discusses which way should you use - ABAP Objects calls or simple function modules.
2. How do I program double click in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=11601
http://www.sapfans.com/forums/viewtopic.php?t=23010
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http://www.sapfans.com/forums/viewtopic.php?t=85191
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4. How to add list heading like top-of-page in ABAP lists?
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Go thru these programs they may help u to try on some hands on
ALV Demo program
BCALV_DEMO_HTML
BCALV_FULLSCREEN_DEMO ALV Demo: Fullscreen Mode
BCALV_FULLSCREEN_DEMO_CLASSIC ALV demo: Fullscreen mode
BCALV_GRID_DEMO Simple ALV Control Call Demo Program
BCALV_TREE_DEMO Demo for ALV tree control
BCALV_TREE_SIMPLE_DEMO
BC_ALV_DEMO_HTML_D0100
OOPs:
Check this for basic concepts of OOPS
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/abap%20objects/abap%20code%20sample%20to%20learn%20basic%20concept%20of%20object-oriented%20programming.doc
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20to%20display%20data%20in%20alv%20grid%20using%20object%20oriented%20programming.doc
Tabstrip
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20for%20tab%20strip%20in%20alv.pdf
Editable ALV
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20to%20edit%20alv%20grid.doc
Tree
http://www.sapdevelopment.co.uk/reporting/alv/alvtree/alvtree_usrint.htm
General Tutorial for OOPS
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/an%20easy%20reference%20for%20alv%20grid%20control.pdf
Rewords some points if it is helpful.
Rgds,
P.Naganjana Reddy

Hi i need material for module pool and alv's.

hi
i need material for module pool and ALV's(not object oriented) if any one have pls do send that to my
ID [email protected]
thanx in advance.

Hi
Check the below link:
http://wiki.ittoolbox.com/index.php/FAQ:What_is_module_pool_program_in_abap%3F
http://help.sap.com/saphelp_46c/helpdata/en/35/26b1aaafab52b9e10000009b38f974/content.htm
http://sap.mis.cmich.edu/sap-abap/abap09/sld011.htm
http://sap.mis.cmich.edu/sap-abap/abap09/index.htm
http://www.geocities.com/ZSAPcHAT
http://www.allsaplinks.com/files/using_table_in_screen.pdf
http://help.sap.com/saphelp_webas630/helpdata/en/9f/db9cdc35c111d1829f0000e829fbfe/content.htm
http://www.sapdevelopment.co.uk/dialog/dialoghome.htm
http://www.sap-img.com/
http://help.sap.com/saphelp_46c/helpdata/en/08/bef2dadb5311d1ad10080009b0fb56/content.htm
http://www.sapgenie.com/links/abap.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c9/5472fc787f11d194c90000e8353423/frameset.htm
You can also check the transaction ABAPDOCU which gives you lot of sample programs.
Also you can see the below examples...
Go to se38 and give demodynpro and press F4.
YOu will get a list of demo module pool programs.
One more T-Code is ABAPDOCU.
YOu can find more examples there.
See the prgrams:
DEMO_DYNPRO_TABLE_CONTROL_1 Table Control with LOOP Statement
DEMO_DYNPRO_TABLE_CONTROL_2 Table Control with LOOP AT ITAB
http://www.geocities.com/ZSAPcHAT
http://www.allsaplinks.com/files/using_table_in_screen.pdf
ALV
ABAP List Viewer
The common features of report are column alignment, sorting, filtering, subtotals, totals etc. To implement these, a lot of coding and logic is to be put. To avoid that we can use a concept called ABAP List Viewer (ALV).
This helps us to implement all the features mentioned very effectively.
Using ALV, We can have three types of reports:
1. Simple Report
2. Block Report
3. Hierarchical Sequential Report
There are some function modules which will enable to produce the above reports without much effort.
All the definitions of internal tables, structures and constants are declared in a type-pool called SLIS.
1. SIMPLE REPORT.
The important function modules are
a. Reuse_alv_list_display
b. Reuse_alv_fieldcatalog_merge
c. Reuse_alv_events_get
d. Reuse_alv_commentary_write
e. Reuse_alv_grid_display
A. REUSE_ALV_LIST_DISPLAY : This is the function module which prints the data.
The important parameters are :
I. Export :
i. I_callback_program : report id
ii. I_callback_pf_status_set : routine where a user can set his own pf status or change the functionality of the existing pf status
iii. I_callback_user_command : routine where the function codes are handled
iv. I_structure name : name of the dictionary table
v. Is_layout : structure to set the layout of the report
vi. It_fieldcat : internal table with the list of all fields and their attributes which are to be printed (this table can be populated automatically by the function module REUSE_ALV_FIELDCATALOG_MERGE
vii. It_events : internal table with a list of all possible events of ALV and their corresponding form names.
II. Tables :
i. t_outtab : internal table with the data to be output
B. REUSE_ALV_FIELDCATALOG_MERGE : This function module is used to populate a fieldcatalog which is essential to display the data in ALV. If the output data is from a single dictionary table and all the columns are selected, then we need not exclusively create the field catalog. Its enough to mention the table name as a parameter(I_structure name) in the REUSE_ALV_LIST_DISPLAY. But in other cases we need to create it.
The Important Parameters are :
I. Export :
i. I_program_name : report id
ii. I_internal_tabname : the internal output table
iii. I_inclname : include or the report name where all the dynamic forms are handled.
II Changing
ct_fieldcat : an internal table with the type SLIS_T_FIELDCAT_ALV which is
declared in the type pool SLIS.
C. REUSE_ALV_EVENTS_GET : Returns table of possible events for a list type
Parameters :
I. Import :
Et_Events : The event table is returned with all possible CALLBACK events
for the specified list type (column 'NAME'). For events to be processed by Callback, their 'FORM' field must be filled. If the field is initialized, the event is ignored. The entry can be read from the event table, the field 'FORM' filled and the entry modified using constants from the type pool SALV.
II. Export :
I_List_type :
0 = simple list REUSE_ALV_LIST_DISPLAY
1 = hierarchcal-sequential list REUSE_ALV_HIERSEQ_LIST_DISPLAY
2 = simple block list REUSE_ALV_BLOCK_LIST_APPEND
3 = hierarchical-sequential block list
REUSE_ALV_BLOCK_LIST_HS_APPEND
D. REUSE_ALV_COMMENTARY_WRITE : This is used in the Top-of-page event to print the headings and other comments for the list.
Parameters :
I. it_list_commentary : internal table with the headings of the type slis_t_listheader.
This internal table has three fields :
Typ : H header, S selection , A - action
Key : only when typ is S.
Info : the text to be printed
E. REUSE_ALV_GRID_DISPLAY : A new function in 4.6 version, to display the results in grid rather than as a preview.
Parameters : same as reuse_alv_list_display
This is an example for simple list.
2. BLOCK REPORT
This is used to have multiple lists continuously.
The important functions used in this report are:
A. REUSE_ALV_BLOCK_LIST_INIT
B. REUSE_ALV_BLOCK_LIST_APPEND
C. REUSE_ALV_BLOCK_LIST_HS_APPEND
D. REUSE_ALV_BLOCK_LIST_DISPLAY
A. REUSE_ALV_BLOCK_LIST_INIT
Parameters:
I. I_CALLBACK_PROGRAM
II. I_CALLBACK_PF_STATUS_SET
III. I_CALLBACK_USER_COMMAND
This function module is used to set the default gui status etc.
B. REUSE_ALV_BLOCK_LIST_APPEND
Parameters :
Export :
I. is_layout : layout settings for block
II. it_fieldcat : field catalog
III. i_tabname : internal table name with output data
IV. it_events : internal table with all possible events
Tables :
i. t_outtab : internal table with output data.
This function module adds the data to the block.
Repeat this function for all the different blocks to be displayed one after the other.
C. REUSE_ALV_BLOCK_LIST_HS_APPEND
This function module is used for hierarchical sequential blocks.
D. REUSE_ALV_BLOCK_LIST_DISPLAY
Parameters : All the parameters are optional.
This function module display the list with data appended by the above function.
Here the functions REUSE_ALV_FIELDCATALOG_MERGE, REUSE_ALV_EVENTS_GET, REUSE_ALV_COMMENTARY_WRITE can be used.
3. Hierarchical reports :
Hierarchical sequential list output.
The function module is
A. REUSE_ALV_HIERSEQ_LIST_DISPLAY
Parameters:
I. Export:
i. I_CALLBACK_PROGRAM
ii. I_CALLBACK_PF_STATUS_SET
iii. I_CALLBACK_USER_COMMAND
iv. IS_LAYOUT
v. IT_FIELDCAT
vi. IT_EVENTS
vii. i_tabname_header : Name of the internal table in the program containing the
output data of the highest hierarchy level.
viii. i_tabname_item : Name of the internal table in the program containing the
output data of the lowest hierarchy level.
ix. is_keyinfo : This structure contains the header and item table field
names which link the two tables (shared key).
II. Tables
i. t_outtab_header : Header table with data to be output
ii. t_outtab_item : Name of the internal table in the program containing the
output data of the lowest hierarchy level.
slis_t_fieldcat_alv : This internal table contains the field attributes. This internal table can be populated automatically by using REUSE_ALV_FIELDCATALOG_MERGE.
Important Attributes :
A. col_pos : position of the column
B. fieldname : internal fieldname
C. tabname : internal table name
D. ref_fieldname : fieldname (dictionary)
E. ref_tabname : table (dictionary)
F. key(1) : column with key-color
G. icon(1) : icon
H. symbol(1) : symbol
I. checkbox(1) : checkbox
J. just(1) : (R)ight (L)eft (C)ent.
K. do_sum(1) : sum up
L. no_out(1) : (O)blig.(X)no out
M. outputlen : output length
N. seltext_l : long key word
O. seltext_m : middle key word
P. seltext_s : short key word
Q. reptext_ddic : heading (ddic)
R. ddictxt(1) : (S)hort (M)iddle (L)ong
S. datatype : datatype
T. hotspot(1) : hotspot
Simple ALV report
http://www.sapgenie.com/abap/controls/alvgrid.htm
http://wiki.ittoolbox.com/index.php/Code:Ultimate_ALV_table_toolbox
ALV
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http://www.sapfans.com/forums/viewtopic.php?t=58286
http://www.sapfans.com/forums/viewtopic.php?t=76490
http://www.sapfans.com/forums/viewtopic.php?t=20591
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http://www.sapfans.com/forums/viewtopic.php?t=23010
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http://www.sapfans.com/forums/viewtopic.php?t=20386
http://www.sapfans.com/forums/viewtopic.php?t=85191
http://www.sapfans.com/forums/viewtopic.php?t=88401
http://www.sapfans.com/forums/viewtopic.php?t=17335
4. How to add list heading like top-of-page in ABAP lists?
http://www.sapfans.com/forums/viewtopic.php?t=58775
http://www.sapfans.com/forums/viewtopic.php?t=60550
http://www.sapfans.com/forums/viewtopic.php?t=16629
5. How to print page number / total number of pages X/XX in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=29597 (no direct solution)
6. ALV printing problems. The favourite is: The first page shows the number of records selected but I don't need this.
http://www.sapfans.com/forums/viewtopic.php?t=64320
http://www.sapfans.com/forums/viewtopic.php?t=44477
7. How can I set the cell color in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=52107
8. How do I print a logo/graphics in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=81149
http://www.sapfans.com/forums/viewtopic.php?t=35498
http://www.sapfans.com/forums/viewtopic.php?t=5013
9. How do I create and use input-enabled fields in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=84933
http://www.sapfans.com/forums/viewtopic.php?t=69878
10. How can I use ALV for reports that are going to be run in background?
http://www.sapfans.com/forums/viewtopic.php?t=83243
http://www.sapfans.com/forums/viewtopic.php?t=19224
11. How can I display an icon in ALV? (Common requirement is traffic light icon).
http://www.sapfans.com/forums/viewtopic.php?t=79424
http://www.sapfans.com/forums/viewtopic.php?t=24512
12. How can I display a checkbox in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=88376
http://www.sapfans.com/forums/viewtopic.php?t=40968
http://www.sapfans.com/forums/viewtopic.php?t=6919
Go thru these programs they may help u to try on some hands on
ALV Demo program
BCALV_DEMO_HTML
BCALV_FULLSCREEN_DEMO ALV Demo: Fullscreen Mode
BCALV_FULLSCREEN_DEMO_CLASSIC ALV demo: Fullscreen mode
BCALV_GRID_DEMO Simple ALV Control Call Demo Program
BCALV_TREE_DEMO Demo for ALV tree control
BCALV_TREE_SIMPLE_DEMO
BC_ALV_DEMO_HTML_D0100
Reward points if useful
Regards
Anji

Flash Button Component inside of a SWC

I'm publishing a SWC from FlashCC for use in a FlashBuilder Air project and I get errors when I compile.
Inside of the SWC I have a MovieClip with a button component (fl.controls.Button). In Flash Builder I can make an instance of the MovieClip but when I run the app I get a coercion error:
cannot convert flash.display::MovieClip@56ebee1 to fl.controls.Button.
If I remove the button component from the MovieClip and recompile the SWC there's no error.
If i simply try to add a button instance like this:
var b:Button=new Button();
trace(b);
addChild(b);
The button traces but I get this error
[object Button]
TypeError: Error #2007: Parameter child must be non-null

When adding a Button directly to the app I can solve the null problem by setting the default button styles, which are included in the SWC like this:
            var btn:Button=new Button();
            btn.setStyle( "upSkin", new Button_upSkin());
            btn.setStyle( "downSkin", new Button_downSkin());
            btn.setStyle( "overSkin", new Button_overSkin());
            btn.setStyle( "disabledSkin", new Button_disabledSkin());
            btn.setStyle( "selectedUpSkin", new Button_selectedUpSkin());
            btn.setStyle( "selectedDownSkin", new Button_selectedDownSkin());
            btn.setStyle( "selectedOverSkin", new Button_selectedOverSkin());
            btn.setStyle( "selectedDisabledSkin", new Button_selectedDisabledSkin());
            btn.label="Hello";
            btn.width=100;
            btn.height=22;
            airapp.addChild(btn);
What I really want to do is avoid the coding and make button and other component instances inside of MovieClips in Flash and include them in the SWC.
I can get components to work with Flash Professional Projects, but this is an ActionScript Project, so I need the SWC.

Slide presentation and Tree component

Hello there,
I'm trying to develop a small multimedia application which
will use the Tree component as the menu navivation. I've managed to
setup the tree object and load the menu titles from an external
.xml file. The problem i'm experiencing is that i cannot assign
actions to the menu selections so it will jump to their respective
slide. I have placed the tree component inside a movie clip and at
the presentation level. On first key frame of the movie clip i've
placed this
code but
still can't refence the slide2.
Thank you in advance,
Deann

Not sure, would have to try it myself, but try evt.target
instead of this.

ALv to excel download problems

HI friends,
Probelm I'm facing while saving an ALV report to Excel Sheet by clicking
on the 'Save as File Icon' button on the ALV output.=0D
Here data is going into a new Line after 65 columns.I've used Function
Module 'RSAQ_ALV'.This function module is ultimately using
'REUSE_ALV_GRID_DISPLAY' and 'REUSE_ALV_LIST_DISPLAY' function
modules.ALV output I'm getting correctly but when I save this ALV output
to Excel,columns are getting wrapped and going into 2nd row after 65
columns.=0D
Could anybody tell me what could be the reason ?=0D
Thanks,
Sreekanth.G
Moderator message: duplicate post locked.
Edited by: Thomas Zloch on Jul 9, 2010 12:36 PM

ch_alv_layout-info_fieldname = 'COLOR'. "infofield for listoutput
ch_alv_layout-colwidth_optimize = 'X'.
try commenting the above values.and also check the Fieldcatlog.
Check the issue similar issue was resolve by checking catalog and layout:
[ALV Issue solution|Re: Problem when export ALV.]
Regards,
Gurpreet

Open and close visa inside a while loop

Hi,
I need to read a position from a control unit device continuously or even by click a button, for this I have to put "visa configure serial port" and" "visa close" inside a while loop. Dose it make any problem?

You shouldn't need the VISA Event nodes. Get rid of those.
Why are you using Concatinate String just to build up a constant. Just create a single string constant. It is a lot cleaner.
Is the antenna constantly sending data to you or only when you request it?
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines

OCR and voting disks on ASM, problems in case of fail-over instances

Hi everybody
in case at your site you :
- have an 11.2 fail-over cluster using Grid Infrastructure (CRS, OCR, voting disks),
where you have yourself created additional CRS resources to handle single-node db instances,
their listener, their disks and so on (which are started only on one node at a time,
can fail from that node and restart to another);
- have put OCR and voting disks into an ASM diskgroup (as strongly suggested by Oracle);
then you might have problems (as we had) because you might:
- reach max number of diskgroups handled by an ASM instance (63 only, above which you get ORA-15068);
- experiment delays (especially in case of multipath), find fake CRS resources, etc.
whenever you dismount disks from one node and mount to another;
So (if both conditions are true) you might be interested in this story,
then please keep reading on for the boring details.
One step backward (I'll try to keep it simple).
Oracle Grid Infrastructure is mainly used by RAC db instances,
which means that any db you create usually has one instance started on each node,
and all instances access read / write the same disks from each node.
So, ASM instance on each node will mount diskgroups in Shared Mode,
because the same diskgroups are mounted also by other ASM instances on the other nodes.
ASM instances have a spfile parameter CLUSTER_DATABASE=true (and this parameter implies
that every diskgroup is mounted in Shared Mode, among other things).
In this context, it is quite obvious that Oracle strongly recommends to put OCR and voting disks
inside ASM: this (usually called CRS_DATA) will become diskgroup number 1
and ASM instances will mount it before CRS starts.
Then, additional diskgroup will be added by users, for DATA, REDO, FRA etc of each RAC db,
and will be mounted later when a RAC db instance starts on the specific node.
In case of fail-over cluster, where instances are not RAC type and there is
only one instance running (on one of the nodes) at any time for each db, it is different.
All diskgroups of db instances don't need to be mounted in Shared Mode,
because they are used by one instance only at a time
(on the contrary, they should be mounted in Exclusive Mode).
Yet, if you follow Oracle advice and put OCR and voting inside ASM, then:
- at installation OUI will start ASM instance on each node with CLUSTER_DATABASE=true;
- the first diskgroup, which contains OCR and votings, will be mounted Shared Mode;
- all other diskgroups, used by each db instance, will be mounted Shared Mode, too,
even if you'll take care that they'll be mounted by one ASM instance at a time.
At our site, for our three-nodes cluster, this fact has two consequences.
One conseguence is that we hit ORA-15068 limit (max 63 diskgroups) earlier than expected:
- none ot the instances on this cluster are Production (only Test, Dev, etc);
- we planned to have usually 10 instances on each node, each of them with 3 diskgroups (DATA, REDO, FRA),
so 30 diskgroups each node, for a total of 90 diskgroups (30 instances) on the cluster;
- in case one node failed, surviving two should get resources of the failing node,
in the worst case: one node with 60 diskgroups (20 instances), the other one with 30 diskgroups (10 instances)
- in case two nodes failed, the only node survived should not be able to mount additional diskgroups
(because of limit of max 63 diskgroup mounted by an ASM instance), so all other would remain unmounted
and their db instances stopped (they are not Production instances);
But it didn't worked, since ASM has parameter CLUSTER_DATABASE=true, so you cannot mount 90 diskgroups,
you can mount 62 globally (once a diskgroup is mounted on one node, it is given a number between 2 and 63,
and other diskgroups mounted on other nodes cannot reuse that number).
So as a matter of fact we can mount only 21 diskgroups (about 7 instances) on each node.
The second conseguence is that, every time our CRS handmade scripts dismount diskgroups
from one node and mount it to another, there are delays in the range of seconds (especially with multipath).
Also we found inside CRS log that, whenever we mounted diskgroups (on one node only), then
behind the scenes were created on the fly additional fake resources
of type ora*.dg, maybe to accomodate the fact that on other nodes those diskgroups were left unmounted
(once again, instances are single-node here, and not RAC type).
That's all.
Did anyone go into similar problems?
We opened a SR to Oracle asking about what options do we have here, and we are disappointed by their answer.
Regards
Oscar

Hi Klaas-Jan
- best practises require that also online redolog files are in a separate diskgroup, in case of ASM logical corruption (we are a little bit paranoid): in case DATA dg gets corrupted, you can restore Full backup plus Archived RedoLog plus Online Redolog (otherwise you will stop at the latest Archived).
So we have 3 diskgroups for each db instance: DATA, REDO, FRA.
- in case of fail-over cluster (active-passive), Oracle provide some templates of CRS scripts (in $CRS_HOME/crs/crs/public) that you edit and change at your will, also you might create additionale scripts in case of additional resources you might need (Oracle Agents, backups agent, file systems, monitoring tools, etc)
About our problem, the only solution is to move OCR and voting disks from ASM and change pfile af all ASM instance (parameter CLUSTER_DATABASE from true to false ).
Oracle aswers were a litlle bit odd:
- first they told us to use Grid Standalone (without CRS, OCR, voting at all), but we told them that we needed a Fail-over solution
- then they told us to use RAC Single Node, which actually has some better features, in csae of planned fail-over it might be able to migreate
client sessions without causing a reconnect (for SELECTs only, not in case of a running transaction), but we already have a few fail-over cluster, we cannot change them all
So we plan to move OCR and voting disks into block devices (we think that the other solution, which needs a Shared File System, will take longer).
Thanks Marko for pointing us to OCFS2 pros / cons.
We asked Oracle a confirmation that it supported, they said yes but it is discouraged (and also, doesn't work with OUI nor ASMCA).
Anyway that's the simplest approach, this is a non-Prod cluster, we'll start here and if everthing is fine, after a while we'll do it also on Prod ones.
- Note 605828.1, paragraph 5, Configuring non-raw multipath devices for Oracle Clusterware 11g (11.1.0, 11.2.0) on RHEL5/OL5
- Note 428681.1: OCR / Vote disk Maintenance Operations: (ADD/REMOVE/REPLACE/MOVE)
-"Grid Infrastructure Install on Linux", paragraph 3.1.6, Table 3-2
Oscar

Tabstrip and ALV component inside filtering problem

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