[Gambas-user] Crssed interexchange between forms

[Pino Zollo]

Alle 09:18, sabato 29 marzo 2008, hai scritto:
Hi Richard and Rob
Thanks for your answers and suggestion....
Both of your solutions do not work....I do not know why.

So I made an example program to show you the double problem.
You can download it form http://www.qsl.net/zp4kfx/xcross-0.0.1.tar.gz

This program opens 3 forms: Fmain, FormA and FormB.
On my computer FormA can send a value to Fmain end execute a PULIC SUB of 
FMain too, but not on FormB.
The symetric  for FormB
FMain can not send values to FormA or FormB and nither execute PUBLIC SUBs in 
both.
No errors are displayed.

I did set public both module symbols and control forms.

Maybe there is something else that I do not have understood.

Thanks for your help
Regards
Pino
> As an alternative to Rob's suggestion that you make all form controls
> public (which should work) you might prefer to create public methods on
> your forms which will take a parameter from the calling form code and store
> the value in a now local form control property.
>
> For example; if on frmCW you have
>
> PUBLIC SUB Write_CWcall_text(calltext as string)
> 	CWCall.text = calltext
> END SUB
>
> then on FMain you would write
>
> 	 IF cw_on THEN FrmCW.Write_CWcall_text(Call.Text)
>
> That should also do the trick and preserve flexibility. If form controls
> are public then you can write directly to them from ANYWHERE. What if you
> decide to change the control from a text box to a value box? You would have
> to go through all your code and change all the writes and reads involving
> the changed control.
>
> If instead you do it as I suggest, then you only need to change the access
> methods for READ and WRITE in one place. Much easier, yes?
>
> Richard
>
> On Friday 28 Mar 2008 18:04, Pino Zollo wrote:
> > I am developing a program in GAMBAS2 2.0
> >
> > How can I pass information between one form and another ?
> >
> > In my program there are 3 forms....FMain, FrmCW e FCluster.
> >
> > >From the class of FrmCW (or of Fcluster) I can write a value in
> >
> > FMain.variabile....
> > But nither from FMain and from FCluster can write variabes in
> > FrmCW.somevariable.
> >
> > It means that the class  of FMain can not send values to the variables of
> > other classes , nither a class (not FMain) can send values to other
> > classes which are not FMain ...Why this ?
> >
> > It seems a big limitation.
> > For instance...in FMain the instruction:
> >
> >       IF cw_on THEN FrmCW.CWCall.text = Call.Text
> >
> > Simply does nothing...nither gives error.
> >
> > In the class of FCluster
> >   FMain.Call.Text = GridSpot[GridSpot.row, 0].Text ' <-- this is ok
> >   IF FMain.cw_on THEN FrmCW.CWCall.text = GridSpot[GridSpot.row, 0].Text
> > ' <--
> >
> > The first instruction works, but the second does nothing.
> >
> >  Why ?
> >
> > Is there some trick or workaround ?
> >
> > For the same reason, I guess,  it does not even work the example in
> > suggestion #11.
> >
> > the instruction
> >
> > hSuperControl.Move(8, 8, 128, 64)
> >
> > if given into the FMain class gives error..."Not enough parameters"
> >
> > >From a class not-FMain I can call SUBs of FMain, but not viceversa
> >
> > Equally from a class not-FMain I can not call SUBs of not-FMain
> >
> > Thanks for any help
> >
> > Pino    pinozollo at ...626...
> >
> >
> >
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