validating PARAMETERS

[Former Member]

FOLKS..

where n how can we validate a field which is declared by using PARAMETERS??

reg

zid.

[Former Member]

if u want to check whether the parameter p_vbeln is initial.

At selection-screen on p_vbeln.

if p_vbeln is initial.

message s000(ZLES) with text-001.

else.

select single vbeln from vbak into l_vbeln

where vbeln = p_vbeln.

if sy-subrc = 0.

else.

exit.

endif.

[Former Member]

Hi,

U can validate input fields using javascript.Write OnClientClick function for that submit button if ur using htmlb or onClick if u r using html.Refer the follows

http://help.sap.com/saphelp_nw70/helpdata/en/03/900e41a346ef6fe10000000a1550b0/frameset.htm

There are two ways to achieve ur task.

1.By checking for all alphabets.in this u need check all the alphabetic characters one by one.Refer the following

http://www.shiningstar.net/articles/articles/javascript/javascriptvalidations.asp?ID=ROLLA

http://www.shiningstar.net/articles/articles/javascript/checkNumeric.asp?ID=AW

2.By using regular expressions.its very easy and a single line code.here u need to specify single expression for whole alphabets.Refer this

http://aspzone.com/blogs/john/articles/173.aspx

Everything has been given for validating in javascript.i hope u also validating in javascript only.

For more details on "Regular expressions" search google.

(Refer reply from Luis)

<b>Reward points if useful</b>

Regards

Ashu

[Former Member]

use event

at selection-screen.

if p_matnr ne '123GA'.

message ' wrong entry' type 'E'.

endif.

start-of-selection.

regards

shiba dutta

[Former Member]

You can validate it normally like any other field. Most often the validation is done in the event AT SELECTION-SCREEN.

Regards,

Manoj

[Former Member]

Here is the sample code for Validating Select-Options.

You can develop a similar logic for Parameters.....

*"Selection screen elements............................................

SELECT-OPTIONS:

S_EBELN FOR EKKO-EBELN, " Purchasing Document Number

S_LIFNR FOR EKKO-LIFNR, " Vendor's account number

S_EKGRP FOR EKKO-EKGRP, " Purchasing group

S_BEDAT FOR EKKO-BEDAT, " Purchasing Document Date

S_UDATE FOR CDHDR-UDATE. " Creation date of the change

" document

"----

---

• AT SELECTION-SCREEN EVENT *

"----

---

AT SELECTION-SCREEN ON S_EBELN.

• Subroutine to validate Purchase Document Number.

PERFORM VALIDATE_PD_NUM.

AT SELECTION-SCREEN ON S_LIFNR.

• Subroutine to validate Vendor Number.

PERFORM VALIDATE_VEN_NUM.

AT SELECTION-SCREEN ON S_EKGRP.

• Subroutine to validate Purchase Group.

PERFORM VALIDATE_PUR_GRP.

&----

---

*& Form VALIDATE_PD_NUM

&----

---

• Subroutine to validate Purchase Document Number

----

---

• There are no interface parameters to be passed to this subroutine.

----

---

FORM VALIDATE_PD_NUM .

IF NOT S_EBELN[] IS INITIAL.

SELECT EBELN " Purchase Document Number

FROM EKKO

INTO W_EBELN

UP TO 1 ROWS

WHERE EBELN IN S_EBELN.

ENDSELECT.

IF SY-SUBRC NE 0.

CLEAR SSCRFIELDS-UCOMM.

MESSAGE E717(M8).

ENDIF. " IF SY-SUBRC NE 0

ENDIF. " IF NOT S_EBELN[]...

ENDFORM. " VALIDATE_PD_NUM

&----

---

*& Form VALIDATE_VEN_NUM

&----

---

• Subroutine to validate Vendor Number

----

---

• There are no interface parameters to be passed to this subroutine.

----

---

FORM VALIDATE_VEN_NUM .

IF NOT S_LIFNR[] IS INITIAL.

SELECT LIFNR " Vendor Number

FROM LFA1

INTO W_LIFNR

UP TO 1 ROWS

WHERE LIFNR IN S_LIFNR.

ENDSELECT.

IF SY-SUBRC NE 0.

CLEAR SSCRFIELDS-UCOMM.

MESSAGE E002(M8) WITH W_SPACE.

ENDIF. " IF SY-SUBRC NE 0

ENDIF. " IF NOT S_LIFNR[]...

ENDFORM. " VALIDATE_VEN_NUM

&----

---

*& Form VALIDATE_PUR_GRP

&----

---

• Subroutine to validate the Purchase Group

----

---

• There are no interface parameters to be passed to this subroutine.

----

---

FORM VALIDATE_PUR_GRP .

IF NOT S_EKGRP[] IS INITIAL.

SELECT EKGRP " Purchase Group

FROM T024

INTO W_EKGRP

UP TO 1 ROWS

WHERE EKGRP IN S_EKGRP.

ENDSELECT.

IF SY-SUBRC NE 0.

CLEAR SSCRFIELDS-UCOMM.

MESSAGE E622(M8) WITH W_SPACE.

ENDIF. " IF SY-SUBRC NE 0

ENDIF. " IF NOT S_EKFRP[]...

ENDFORM. " VALIDATE_PUR_GRP

Regards,

Pavan.

[Former Member]

Hi,

If you validate all the parameters of selection screen, you can use At Selection-Screen event.

If you validate each parameters, you can go At Selection-Screen on <field> event.

Here <field> is parameter name.

Ex. The parameter p_qty has 'KG' .

At Selection-Screen On p_qty.

if p_qty <> 'KG'.

message e001.

endif.

Regards,

Bhaskar