[Gambas-user] Questions about gb.report2

[Gianluigi]

Hi Hans,

You have the answer to the first two questions in the IDE by navigating in
the Gambas project (in my case, gambasdevel) until you open in the
Components gb.report2 > ReportControl > ReportFrame > ReportLabel.
In ReportLabel.class you can see this code in the _Paint routine:

  If sTempText Begins "=" Then
     $hEval.Compile()
     sTempText = $hEval.Value
  Endif

  If $sFormat Then
    Try sTempText = Format(sTempText, $sFormat)
  Endif

  If $bUseField Then
    sTempText = DecodeText(sTempText, Page)
  Endif

and the Function:

Private Function DecodeText(sText As String, Optional Page As Integer,
Optional ForSize As Boolean = False) As String

  If ForSize Then
    If InStr(sText, "$PAGE") Then sText = Replace(sText, "$PAGE", "999")
    If InStr(sText, "$NPAGE") Then sText = Replace(sText, "$NPAGE", "999")
  Else
    If InStr(sText, "$PAGE") Then sText = Replace(sText, "$PAGE", Str(Page
+ 1))
    If InStr(sText, "$NPAGE") Then sText = Replace(sText, "$NPAGE",
Str(Me.Report.PageCount))
  Endif

  Return sText

End

If I well understood Fabien's intentions, now it only works with page,
pages, index but I think the intention is to extend it to other regular
expressions.
But I'm not sure.

UserField: Fabien in tmpJournal write this:
Restore the UseField property in ReportLabel so for now the component is
backward compatible.

Range: I don't think it's activated in either gb.report2, see:

http://gambaswiki.org/wiki/comp/gb.report/reportcontrol/range

Regards
Gianluigi

Il giorno mar 20 ago 2019 alle ore 11:08 Hans Lehmann <hans at gambas-buch.de>
ha scritto:

> Hello,
>
> I currently have several questions about the component gb.report2:
>
>
>    - Where can I find information about the variables(?) `page` and
>    `pages? So far I couldn't find anything on the internet.
>    - Why do I have to write ReportLabel in the properties (in the IDE in
>    the object inspector) to a report control ReportLabel as footer in the
>    properties for example `="Page " & page & " of " & pages`? Why the equal
>    sign at the beginning?
>    - What is the meaning of the `UseField` property? Which field is meant
>    by this?
>    - We are looking for documentation for the property `Range`. What do I
>    have to add to the `Range` property? Which data type? Which value range is
>    to be considered?
>
>
> With kind regards
>
> Hans
>
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>
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