Hi Amir
the handling of .NET events in Matlab is indeed really strange. They are only fired under certain conditions, which don't make any sense to me. An example: Assume you have a winform called Form1 with a combobox called comboBox1 on it. You want a Matlab listener which acts on a change of the combobox selection
classdef TestEvents < handle
properties
f
end
methods
function self=TestEvents
asm=NET.addAssembly('C:\...\test_events.exe');
self.f=test_events.Form1;
self.f.Show;
self.f.Activate;
end
function r=setListener(self)
r=addlistener(self.f.comboBox1,'SelectedValueChanged',@self.myListener);
end
function myListener(self,src,event)
disp('event fired')
end
end
end
Now you show the winform and set the listener by calling
t=TestEvents;
t.setListener;
nothing happens on firing 'SelectedValueChanged'. However, if you call
t=TestEvents;
a=t.setListener;
then the listener is called correctly. So it seems like you need the result of addlistener in the current context, otherwise the event is not handled. This sounds like a bug to me, and I'd like to hear from Mathworks some more details about this behavior. This is on Matlab 2012a
best regards, Kusi
