Handling Conditions for Add/Copy/Insert Rows

Insert Row, Copy Row Contents etc. get trapped in the "Data Change" Event.
My requirement is as follows,
When the user clicks on Add Row (from the toolbar). I have to display a Pop up, and accept an input. If the the input at the Pop up screen is valid, according to standard ALV functionality, a new row is inserted into the displayed table. BUT if the user input at the pop up is invalid, I need to exit the event WITHOUT inserting a new row.
I have been able to display the pop up, accept user input and validate it, within the Data Change event. But I am unable to exit the event without a new row being added.
I have tried manipulating the imported attributes (example clearing them etc) of the Data Change event, like good_cells, mod_cells etc. But even then a new row gets inserted into the display table.
Can you please give me a solution?

Hi Prasanjit,
sorry that i couldn't get abck to you soon.
see in general the ON_DATA_CHANGED event will get fired for the following conditions :
1) when you double click on a particluar row
2) when press F4 and choose a value
3) when you enter a value and DBLclick on the same.
In your case if you click on ADD rows and if you find that it triggers this event then you shoe your POP-up screen and ask the user for the accept or reject. based on his answer you set a flag(global) which will be used to add rows. once if this flag is set then call your screen used for ALV(OO-ALV).
Now in the PBO of this screen you check this flag as whether it is set or not, if set then add a blank row to your output internal table passing to ALV and clear this flag.
following changes to the code needs to be made :
METHOD on_data_changed.
    DATA: is_cells TYPE lvc_s_modi.
do your necessary pop-up application and set the flag *** based on the user's approval.
    if user apporves then
    ws_flg_add = 'X'.
    endif.
    if ws_flg_add eq 'X'.
    call screen 200.
    endif.
endmethod.
Now in the PBO of the screen 200 do the necessary changes:
if my_container is initial.
called when the screen is called for the first time
    create object my_container exporting container_name =      'CONTAINER'.
    create object my_application.
    SET HANDLER lcl_event=>on_f4 FOR ALL INSTANCES.
    SET HANDLER lcl_event=>on_data_changed FOR ALL
    INSTANCES.
    call method my_application->display.
    else.
called when the event gets trigerred.
    call method my_application->display.
endif.
inside the method display i have checked the field and added a new row to the output table.
method display.
prepare fieldcatalog
    CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
         EXPORTING
              i_structure_name = 'EGERH'
         CHANGING
              ct_fieldcat      = gt_fieldcat.
     CALL METHOD my_grid->set_ready_for_input
           EXPORTING
             i_ready_for_input = 1.
added a extra row.
    if ws_flg_add eq 'X'.
      clear gs_outtab.
      append gs_outtab to gt_outtab.
      clear ws_flg_add.
    endif.
set table for first display
    CALL METHOD my_grid->set_table_for_first_display
      EXPORTING
       i_structure_name = 'EGERH'
        is_layout        = gs_layout
      CHANGING
        it_outtab        = gt_outtab[]
        it_fieldcatalog = gt_fieldcat.
endmethod.
this was a simple way and there are some other options.
Regards,
Jagath.

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I am trying to insert rows for alert_id 22 with diff abc_id and xyz_id

I am trying to insert rows for alert_id 22 with diff abc_id and xyz_id
these inserts will store in two tables that I have to join in the cursor.
I have written cursor without passing cursor parameters. but here i need to pass acb_id and xyz_id along with alert_id.
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Sample proc like this::
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another_cur
alert_cur
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Exception handling for all the insert statements in the proc

CREATE PROCEDURE TEST (
@IncrStartDate DATE
,@IncrEndDate DATE
,@SourceRowCount INT OUTPUT
,@TargetRowCount INT OUTPUT
,@ErrorNumber INT OUTPUT
,@ErrorMessage VARCHAR(4000) OUTPUT
,@InsertCase INT --INSERT CASE INPUT
WITH
EXEC AS CALLER AS
BEGIN --Main Begin
SET NOCOUNT ON
BEGIN TRY
DECLARE @SuccessNumber INT = 0
,@SuccessMessage VARCHAR(100) = 'SUCCESS'
,@BenchMarkLoadFlag CHAR(1)
,@BenchmarkFlow INT
,@MonthYearStart DATE
,@MonthYearEnd DATE
,@StartDate DATE
,@EndDate DATE
/* Setting the default values of output parameters to 0.*/
SET @SourceRowCount = 0
SET @TargetRowCount = 0
/*Setting the Start and end date for looping */
SET @MonthYearStart = @IncrStartDate;
SET @MonthYearEnd = @IncrEndDate;
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@InsertCase =1 means data will be inserted in the target TAB2
@InsertCase =2 means data will be inserted in the target TAB3
@InsertCase =3 means data will be inserted in the target TAB4
@InsertCase =4 means data will be inserted in the target TAB5
@InsertCase =5 means data will be inserted in the target TAB6
if @InsertCase =0
WHILE (@MonthYearStart <= @MonthYearEnd)
BEGIN
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SET @EndDate = @MonthYearEnd;
/* Delete from target where date range given from input parameter*/
DELETE FROM TAB1
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AND [YEAR] BETWEEN year(@StartDate) and year(@EndDate)
/*Insert data in target-TAB1 */
BEGIN TRANSACTION
INSERT INTO TAB1
A,B,C
SELECT
A,BC
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SET @MonthYearStart = DATEADD(MONTH, 1, @MonthYearStart)
SELECT @TargetRowCount = @TargetRowCount + @@ROWCOUNT;
END -- End of whileloop
END TRY
BEGIN CATCH
IF @@TRANCOUNT>0
ROLLBACK TRANSACTION
SELECT @ErrorNumber = ERROR_NUMBER() ,@ErrorMessage = ERROR_MESSAGE();
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I have the above proc inserting data based on parameters where in @InsertCase is used for case wise execution.
I have written the whole proc with exception handling using try catch block.
I have just added one insert statement here for 1 case now I need to add further insert cases
INSERT INTO TAB4
                A,B,C
SELECT
                                A,BC
FROM XYZ
INSERT INTO TAB3
                A,B,C
SELECT
                                A,BC
FROM XYZ
INSERT INTO TAB2
                A,B,C
SELECT
                                A,BC
FROM XYZ
I will be using following to insert further insert statements
if @InsertCase =1
I just needed to know where will be my next insert statement should be fitting int his code so that i cover exception handling for all the code
Mudassar

Hi Erland & Mudassar, I have attempted to recreate Mudassar's original problem..here is my TABLE script;
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GO
/****** Object: Table [dbo].[TAB1] Script Date: 2/5/2014 7:47:48 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[TAB1](
[COL1] [nvarchar](1) NULL,
[COL2] [nvarchar](1) NULL,
[COL3] [nvarchar](1) NULL,
[START_MONTH] [int] NULL,
[END_MONTH] [int] NULL,
[START_YEAR] [int] NULL,
[END_YEAR] [int] NULL
) ON [PRIMARY]
GO
Then here is a CREATE script for the SPROC..;
USE [MSDNTSQL]
GO
/****** Object: StoredProcedure [dbo].[TryCatchTransactions1] Script Date: 2/5/2014 7:51:33 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
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@IncrStartDate DATE
,@IncrEndDate DATE
,@SourceRowCount INT OUTPUT
,@TargetRowCount INT OUTPUT
,@ErrorNumber INT OUTPUT
,@ErrorMessage VARCHAR(4000) OUTPUT
,@InsertCase INT --INSERT CASE INPUT
WITH
EXEC AS CALLER AS
BEGIN --Main Begin
SET NOCOUNT ON
BEGIN TRY
DECLARE @SuccessNumber INT = 0
,@SuccessMessage VARCHAR(100) = 'SUCCESS'
,@BenchMarkLoadFlag CHAR(1)
,@BenchmarkFlow INT
,@MonthYearStart DATE
,@MonthYearEnd DATE
,@StartDate DATE
,@EndDate DATE
/* Setting the default values of output parameters to 0.*/
SET @SourceRowCount = 0
SET @TargetRowCount = 0
/*Setting the Start and end date for looping */
SET @MonthYearStart = @IncrStartDate;
SET @MonthYearEnd = @IncrEndDate;
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@InsertCase =0 means data will be inserted in the target TAB1
@InsertCase =1 means data will be inserted in the target TAB2
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@InsertCase =3 means data will be inserted in the target TAB4
@InsertCase =4 means data will be inserted in the target TAB5
@InsertCase =5 means data will be inserted in the target TAB6
IF @InsertCase =0
WHILE (@MonthYearStart <= @MonthYearEnd)
BEGIN
SET @StartDate = @MonthYearStart;
SET @EndDate = @MonthYearEnd;
/* Delete from target where date range given from input parameter*/
DELETE FROM TAB1
WHERE START_MONTH BETWEEN MONTH(@StartDate) AND MONTH(@EndDate)
AND START_YEAR BETWEEN year(@StartDate) and YEAR(@EndDate)
/*Insert data in target-TAB1 */
BEGIN TRANSACTION
INSERT INTO TAB1 (COL1,COL2,COL3)
VALUES ('Z','X','Y')
SELECT COL1, COL2, COL3
FROM TAB1
COMMIT TRANSACTION
SET @MonthYearStart = DATEADD(MONTH, 1, @MonthYearStart)
SELECT @TargetRowCount = @TargetRowCount + @@ROWCOUNT;
END -- End of whileloop
END TRY
BEGIN CATCH
IF @@TRANCOUNT > 0
ROLLBACK TRANSACTION
SELECT @ErrorNumber = ERROR_NUMBER() ,@ErrorMessage = ERROR_MESSAGE();
END CATCH
PRINT @SUCCESSMESSAGE
END--End of Main Begin
GO
I am just trying to help --danny rosales
UML, then code

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I was following this tutorialALV Grid Insert row function
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Hi
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                               alv_lt_events TYPE slis_t_event.
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ls_event-form = u_form.
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FORM top_of_page.
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If I remove the condition for the report, I can see the report getting refreshed and showing new rows through the $a_Report() call.
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Edited by: Dippy on Feb 5, 2010 11:05 AM

Hi Flavio,
Thanks for your support.I figured where I was going completely wrong.
Its just that when the page loads for the first time the temp table is empty and hence the report is not being displayed which simply
means that the report id Im passing into the a_report function is not rendered on the page. Hence no matter what the temp table contains the report id is absent from the page.
I fixed it as follows :
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Inserting rows in ALV

Hi Experts,
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I also want some guidance reg the event handler thing. Is mouse click on the cell makes the methods of the protocol to be called? ( I am a java student.. learning SAP slowly.. can you please help me?)

methods:
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This part of the code is responsible for inserting rows in a grid. We call this method to insert records in the Grid.
There is no such function module implemented here. We implement the above functionality using <b>Classes and Methods</b>.
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Add and Remove rows

Hi,
I have 2 tables, and I needed to add/remove some rows from the first table to the second.
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But the user can add two or more times the same row, so I need to avoid that. The user should be able to add every row only once!!
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Thanks in advance!
Best Regards
Marcelo.

Hi again Ahmed
I've solved my problem, but now I'm facing a new issue about the same topic.
Following your tips, I've found a solution, but now, I need to copy a complete field of a table to the data store.
For example, my table has 4 field (country, key, name and city), and I need to copy ALL the key values to the data store. So, if I have 4 rows in the table, let's say "key1", "key2", "key3", "key4"
I've reached a solution, but it involves to walk throught the entire table, selecting every row automatically (I use a spinner) and "copying" every key field of every row to the data store. When I say "copying" I mean adding it to the same virtual field of the data store, that is to say, concatenating the key values one after another.
The problem arises when the table has more than 100 records, because 100 is the top value that a spinner can reach.
Any ideas about can bypass that limit?
Thanks in advance, your help is really appreciated.
Best regards
Marcelo

Inserting rows

hello every body
if u can explain
there is a form consists of
1-(dept table) from scott schema
2-text_item in a control block
3-push_button in a control block
4- when button pressed trigger on the push button
--- what i want is when i write a value in the text_item then click the button
i want the value be inserted in the (dept) block and i want it to be inserted in the record after the last record in the table
and that did not happen when i tried that and i do not know why
---- what i did was
the problem was
when i click the button it really inserts the value in the table but it is not show unless i execute query a again
and i do not want that i want when i click the button i see the value in front of me in the table
--- the second problem is
it does not insert the value in the last record but it inserts it in the first record .
---- the third is
sure u know that any changes do not really inserted in the table in the database unless u click the (save) button
--- what happens is when i click the (save) button , a mesage appears says that (no changes to save)
but however it really save the data in the table in the schema although this message (no changes to save)
please attend
thanks everyone

Welcome to the Oracle Forums. Please take a few minutes to review the following:
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</ul>
It is always a good idea to list your Forms version as the solution could be different. Also, as your question seems to be a coding related issue, it would be helpful for you to show the code you wrote in your When-Button-Pressed trigger.
I want the value be ins erted in the (dept) block and i want it to be inser ted in the record after the last record in the table Keep in mind, that where you i nsert a record is not exactly how Oracle will retrieve it. If you want your data ordered a certain way you should specify a sort order.
when i click the button it really inse rts the value in the table but it is not show unless i execute query a again and i do not want that i want when i click the button i see the value in front of me in the table >
If you add a record to your table through code using a DML statement, then the only way to display that record in your form is to requery the data block. Preferrably, you should just navigate to the last record of the block, add a new row and add your value to the Forms block. Oracle Forms is tightly intergrated with the database so any record you add, change or remove, the DML will automatically be handled by Oracle Forms. Consequently, you could have written code similar to the following to accomplish your task:
/* Sample When-Button-Pressed */
BEGIN
   /* assumes your block is named after your table */
   Go_Block('DEPT');
   Last_Record;
   Next_Record;
   :DEPT.DEPT_ID := :CONTROL.DEPT_ID
   ... Any other DEPT block assignments listed here
END;The above sample code does not perform an explicit save so no changes have been sent to the database yet. If you try to exit your form, Forms will prompt you to Save your changes.
--- the second problem is it does not inse rt the value in the last record but it inse rts it in the first record .>
See my comment above about adding a sort order. If you want your records displayed in a specific order, then you should put an Order By clause on your block.
---- the third is sure u know that any changes do not really inser ted in the table in the database unless u click the (save) button
--- what happens is when i click the (save) button , a mesage appears says that (no changes to save) >
Do you have a C OMMIT or C OMMIT_FORM in your When-Button-Pressed trigger? If so, then you have already saved the changes to the table so when you click the Save button, this is a correct message.
I get the impression that you are either in a class learning Oracle Forms or you are attempting to learn Oracle Forms on your own. I strongly suggest you purchase a book on developing with Oracle Forms. There are serveral good books out there, although most of them are for older versions of Oracle Forms, but they are still valuable because they will teach you the theory of developing with Oracle Forms. One of the better books is Developing Oracle Forms Applications by Albert Lulushi.
Hope this helps,
Craig B-)
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