What is the use of CTU_PRAMS in bdc programming?

Question

what is the use of CTU_PRAMS in bdc programming?
can any explain wit a sample code.

Answer 1

Hi,
Hi,
If u write table control bdc program in 14'' monitor screen, then if the same program u run at different monitor size, then the screen resolution problem comes in to the picture,
like, u get 5 records in table control in one screen, and some other records in other screen, to avoid this screen resolution problem we use CTU-PARAMS Structure.
In ur program u have to set
defsize type ctu_params-defsize value 'X',
Then u will be free of screen resolution problem.
Fill the str CTU_PARAMS-defsize = 'X' and pass in CTU stmnt as
call transaction 'XXX' options using t_bdcdata ctu_params.
Analysing :
1. If nothing works, then we have to
some ifs & buts.
2. There shall be normally
2-4 different kinds of resolution
on various users comptuers.
3. Based on this,
we have to know beforehand,
what will be the number of rows
in the table control.
4. The user can be given
a selection/paraemter
for resolution
eg. 800x600
1024x100
axb
etc.
5. Based on this, we will hardcode
in the program (based upon our knowledge/recording
which we have seen and done)
we will hardcode
the number of lines
in the VARIBLE.
6. Then we can simply use this variable
for our LOOP and logic purpose.
7. It will be the responsibiltiy of the
use to CHOOSE THE CORRECT resolution,
on the selection-screen.
For screen resolution use ctu_params, with default size
Data : f_option type ctu_params,
f_option-updmode = 'S'.
f_option-defsize = 'X'.
f_option-dismode = 'N'.
call transaction 'VA01' using bdcdata options from f_option messages into bdcerror.
CALL TRANSACTION tcode... OPTIONS FROM opt
... OPTIONS FROM opt
Effect
Allows you to control processing using the values of the componetns of the structure opt, which must have the ABAP Dictionary type CTU_PARAMS. The components have the following meanings:
DISMODE
Display mode (like the MODE addition)
UPDMODE
Update mode (like the UPDATE addition)
CATTMODE
CATT mode (controls a CATT)
CATT mode can have the following values:
' ' No CATT active
'N' CATT without single-screen control
'A' CATT with single-screen control
DEFSIZE
Use default window size
RACOMMIT
Do not end transaction at COMMIT WORK
NOBINPT
No batch input mode (that is, SY-BINPT = SPACE)
NOBIEND
No batch input mode after the end of BDC data.
The components DEFSIZE , RACOMMIT, NOBINPT, and NOBIEND always take the following values:
'X' Yes
' ' No
If you do not use the OPTIONS FROM addition, the following control parameter settings apply:
DISMODE
From addition MODE
UPDMODE
From addition UPDATE
CATTMODE
No CATT active
DEFSIZE
Do not use default window size
RACOMMIT
Successful end on COMMIT WORK
NOBINPT
Batch input mode active ( SY-BINPT = X
NOBIEND
Batch input mode remains active after the BDC data