Add and remove leading zeroes

Question

Hi all,
       Iam having a requirement where in a enduser enters the vendor number and after pressing enter key it should display the vendor num along with vendor name concatenated in the same field. But the end user is provided the facility that he may not enter the exact vendor number ( I mean if vendor number is for example 0000055,  the enduser may enter simply 55). The system should convert it with leading zeroes internally. And in display it should display removing leading zeroes.
like     input:  55              output : 55 Vendor_Name
my approach
iam using conversion_exit_alpha_input    for adding leading zeroes       before select query ( to fetch the vendor name for vendor number the user supplies)
before displaying the output after concatenation,
iam using  conversion_exit_alpha_output.
after execution,
it is asking the exact vendor number .  But in the output, it is giving the vendor number along with vendor name by removing leading zeroes ( as expected).
how to make the system accept the number without leading zeroes. please suggest me.
tthanking you in advance
regards
Bikash

Answer 1

Hi Bikash,
Since you have to display the Vendor number concatenated along with the Vendor Name, why do you need to use the Alpha Exit Function Module. As you have the Vendor number without the zeros in the input field, you can store it in a temporary variable and then once the Vendor name is available you can concatenate it along with the number in the same field.
If you need a code snippet, you can provide the Technical details of the fields of input. We can use the implicit ABAP    type casting feature to get the Vendor Number without any leading zeros.
Hope this helps.
Thanks,
Samantak.