How to display leading zeros in RAP Fiori App key field?

[HugoJ]

Hi, I'm implementing a RAP-based Fiori Application in S/4HANA On-Prem.

My current issue is figuring out how to display the main Key field - Document Number - with leading zeros. It is a NUMC 10 field in the database, with output length 10 in the domain.

How it currently displays:

How I would like it to display:

I have tried to create a duplicate field in the main CDS View and force the leading zeros:

key docnr                                     as Docnr,
cast(lpad(docnr,10,'0') as abap.char(10))     as DocnrLong,

However the frontend seems to always delete the leading zeros, maybe if I change something in BAS files, like formatter.js, is there a way?

Thank you

[junwu]

did you check what the odata return for DocnrLong? are you sure your UI field is bound to DocnrLong?

[HugoJ]

Thanks for your reply junwu, apparently it was just a matter of cache cleanup. The solution I presented is already okay.

[HugoJ · Accepted solution]

Solution provided in the original question was already OK.

[Gabriel9 · Accepted solution]

thx had the same issue !