RE: Dynamically mapping data to widgets

Question

One quick and dirty solution would be something like this (though not
terribly efficient):
newPanel : Panel;
newPanel = <panelCreatedFromWindowWorkshop>.Clone(deep = TRUE);for childWidget in newPanel.children do
-- check if the childWidget field name matches field name to be
set
if childWidget.name.isEqual(source=<..FieldNameToSet..>,
ignoreCase=TRUE) then
dataWidget : dataField = dataField(childWidget);
if dataWidget.textvalue = NIL then
dataWidget.textvalue = new;
end if;
-- set the textvalue of the childWidget to required
value
dataWidget.textvalue.setvalue('WORKS !');
end if;
end for;
Your problem would have been directly solved if the Forte library class
CompoundField provided a SetDataObject( ) method corresponding to the
GetDataObject( ) method.
According to Forte Help - "The GetDataObject method returns the object
that the compound field is mapped to. If the compound field is not
mapped to an object, this method returns NIL."
Maybe Forte could consider providing this in a future release.
Another option would have been to use the GetFieldByName( ) method on
the newly created panel to get at the child widgets directly.
According to Forte help - "GetFieldByName is designed for use in dynamic
applications. For example, you can use GetFieldByName to retrieve the
names of dynamically created fields for immediate use in dynamic
applications."
This works fine for compile-time named widgets, but I couldn't get it to
work for the newPanel child widgets using the code below, or maybe I am
missing something here.
newPanel : Panel;
newPanel = <panelCreatedFromWindowWorkshop>.Clone(deep = TRUE);newPanel.name.setvalue('newPanel');
newPanel.parent = <aGridField>;
dataWidget : dataField = dataField(newPanel.getFieldByName('age'));
(OR)
dataWidget : dataField =
dataField(<aGridField>.getFieldByName('newPanel.age'));
(OR)
dataWidget : dataField =
dataField(self.window.getFieldByName('newPanel.age'));
In all cases the return value was NIL.
Maybe someone from Forte could shed more light on this.
Hope this helps.
Prashant.
From: Richard Finegan[SMTP:[email protected]]
Reply To: Richard Finegan
Sent: Thursday, August 13, 1998 2:27 PM
To: 'Forte Users Mailing List'
Subject: Dynamically mapping data to widgets
Here's what I'm trying to do:
I have a panel with a bunch of data fields that I've mapped to an
object.
I want to replicate the panel several times to programmatically
populate a
TabFolder (although the TabFolder bit isn't really relevant here, I
think).
But I can't figure out how to get at the mapped data in the replicas
of my
object...
newPanel : Panel;
newPanel = <panelCreatedFromWindowWorkshop>.Clone(deep = TRUE);
panelCreatedFromWindowWorkshop.anAttributeOfObjMappedToPanel =
something;
// tada! "something" appears in a data field of the original panel
newPanel.? = something; // how to do the same thing with the new
panel?
How do I map an object to the replicated panel? I've experimented
with
assigning "Widget.AppData" to a new object, but I can't seem to get it
to
do anything...
Thanks in advance for your help.
Richard Finegan
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Answer 1

Hi Michael,
did you find any solution?
I've the same problem.