using Scripts with GUIKit (bug?)
- To: mathgroup at smc.vnet.net
- Subject: [mg57436] using Scripts with GUIKit (bug?)
- From: "Brett Patterson" <muckle.moose at gmail.com>
- Date: Sat, 28 May 2005 05:38:59 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
When should a Script[...] be use in a GUIKit Widget expression?
For example, in the documentation for the ComboBox widget there is
ambiguity about whether
"items" -> {"one", "two"}
or
"items" -> Script[{"one", "two"}]
is correct. I've tried both and they both seem to work.
Also, is the scope (context) of ALL Script blocks the same in a Widget
expression, even if there are Dialog widgets that are shown/disposed
during operation of the GUI?
Finally, this all relates to an infuriating bug I have. I have a main
Panel widget that contains a Dialog widget that is shown when a Button
in the Panel is clicked. The Dialog has a ComboBox called "sPlotCombo".
In the main Panel widget definition, I have a function definition in a
Script that uses the expression
PropertyValue[{"sPlotCombo", "selectedItem"}].
However, this is causing the evaluation of the Panel to hang. If I
comment out all such expressions, the Panel evaluates and displays, but
if I include those expressions, the then evaluation just hangs and no
GUI is displayed and I have to Quit the Kernel.
Any clues as to the cause and solution of this bug would be warmly
welcomed!
Regards,
Brett Patterson