[Gambas-user] String array empty after SUB (Gambas 2)

[nando]

felder as STRING[] is a parameter passed into sub
It is no good outside of SUB

What you should do is make your sub 

 PUBLIC FUNCTION ListeKundeFelder(schlysselnr AS String, felder AS String[]) AS STRING[]

and return the string[], assigning it to the original felder[]

-Fernando



---------- Original Message -----------
From: Rolf-Werner Eilert <eilert-sprachen at ...221...>
To: mailing list for gambas users <gambas-user at lists.sourceforge.net>
Sent: Wed, 22 Feb 2012 17:41:53 +0100
Subject: [Gambas-user] String array empty after SUB (Gambas 2)

> Now, this is a strange one :-) and I really have no idea what goes wrong 
> here.
> 
> I've got a dialog which loads a list of names. I'm keeping such SUBs 
> that deal with files in a module called ldsv (brief for load-save).
> 
> The dialog's part is simple, "ls" is the listbox:
> 
> PRIVATE felder AS NEW String[]
> 
> PUBLIC SUB ls_Click()
> 
>    Label1.Text = "Nr. " & schlyssel[ls.Index] & ": " & ls[ls.Index].Text
> 'here we jump into the SUB:
>    ldsv.ListeKundeFelder(schlyssel[ls.Index], felder)
> 'now we should see the number of fields loaded:
>    lblTitel.Text = CStr(felder.Count)
> 
> END
> 
> Now the SUB in module ldsv:
> 
> PUBLIC SUB ListeKundeFelder(schlysselnr AS String, felder AS String[])
> DIM t$ AS String
> DIM feld AS NEW String[]
> 
>    felder.Clear
> 
>    t$ = File.Load(pfadKunden &/ schlysselnr & ".kunde")
>    t$ = Tag2Str(t$)
> 
>    feld = Split(t$, Chr$(10))
> 
>    IF feld[0] = "#!Stein3.1" THEN
>      feld.Delete(0, 2)               'das #! und die ID können weg
>      felder = feld.Copy()
>    END IF
> 
> END
> 
> When I put a stop at the END IF and watch the values, felder will have 
> 16 values from 0 - 15 containing strings just as expected. But when I 
> return to the dialog, felder is empty! This is especially weird as there 
> are other SUBs and FUNCTIONs en masse in my project that do it exactly 
> the same way.
> 
> I cannot detect any mistake I made - or do you?
> 
> Regards
> 
> Rolf
> 
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------- End of Original Message -------