help regarding a program using string operations.

[Former Member]

i am a student and i have a question.I wrote a simple program

PARAMETERS PHONE(10) TYPE N.

AT SELECTION-SCREEN.

  IF

    PHONE CS SY-ABCDE.

    MESSAGE 'PLZ AVOID CHAR' TYPE 'E'.

  ELSE.

    MESSAGE 'VALID PHONE NO' TYPE 'I'.

ENDIF.

As special characters are also strings,so when i  input special characters it says valid phone no.

So how to write a program where it can restrict even the special characters?

[Former Member]

Hi Imran,

You can use appropriate data types, may be constants for special character, see if there is any message class for the message you want to display.

Also use one If-Elseif block instead to two If blocks.

Thanking You All..!!

[Former Member]

Hi Imran,

Pls check the following two URLs, they will be helpful for you..!!

https://scn.sap.com/thread/688485p

Thanking You All..!!

[Former Member]

thanks a lot Ankit .I am gonna try using this.

[arivazhagan_sivasamy]

Hi,

PARAMETERS PHONE(10) TYPE N.

You have declared as type N.

In this case you could not enter other than 0 to 9.

Regards,

Arivazhagan S

[Former Member]

Hi Ankit,

you are right.But now i changed it char.Please check the program below.

PARAMETERS PHONE(10).

DATA SPEC_CHAR(50) TYPE C VALUE '`,~,!,@,#,$,%,^,&,*,(,),-,_,=,+,{,[,},]'.

AT SELECTION-SCREEN.

  IF

    PHONE CA SY-ABCDE.

    MESSAGE 'PLZ AVOID CHAR' TYPE 'E'.

    ENDIF.

  IF

    PHONE CA SPEC_CHAR.

    MESSAGE 'PLZ AVOID CHAR' TYPE 'E'.

  ELSE.

    MESSAGE 'VALID PHONE NO' TYPE 'I'.

ENDIF.

I would really appreciate if you can analyze and let me know if there is any other more efficient way of writing it.

Thanks.

[Former Member]

Hi Imran,

You can use appropriate data types, may be constants for special character, see if there is any message class for the message you want to display.

Also use one If-Elseif block instead to two If blocks.

Thanking You All..!!

[Former Member]

IF

    PHONE CA SY-ABCDE or PHONE CA SPEC_CHAR.

    MESSAGE 'PLZ AVOID CHAR' TYPE 'E'.

ELSE.     "I think no need if valid.

    MESSAGE 'VALID PHONE NO' TYPE 'S'.

ENDIF.

[Former Member]

Thanks Ankit.

It really helped and made it very simple.

[Former Member]

Thanks a lot fatih.