I downloaded monotouch 4 and 2.8 of MD this morning after a prompt from MD
My app has a view which requires user to enter name and address info
It has a button which allows user to pick from the contacts list
Code lifted straight from Wally B's book
It's worked fine until now - I mean last night fine - this morning after
upgrade No
It is undebuggable - cannot even get to a break point simply drops out with
green line at UIApplication.Main(args)
As I say I've not changed code overnight.
The trace shows it failing on monotouch.utils.backingField.get
In developer/monotouch/source/monotouch/src/utils/backingField.cs line 47
I'd be the first to admit my code is not exactly expert - I do hope this is
a fault in the new version rather than I have to go to college for 10 years
to discover how to do it properly as every new developer tool/evolution
seems to get more complicatedJ
It seem simple enough - I cant imagine what I am doing wrong and why it only
comes out now after the upgrade
A button calls
- paxViewController.PresentModalViewController(ppvc,true) ;
the ppvc is declared like this
var ppvc = new ABPeoplePickerNavigationController();
and then it has a few override methods e.g.
ppvc.SelectPerson+=delegate(object
sender,ABPeoplePickerSelectPersonEventArgs e)
{
//do something
//dismiss modal
paxViewController.DismissModalViewControllerAnimated(true);
};
And that's all there is to it - as I say it doesn't even get to these
lines - on touching the contact (any contact) to select it drops out with
nullreference exception
And no clue as to what is causing it
are there changes in monotouch4 which mean I have to do things differently?
Desperate for help here - completely out of my depth.
Tia
John Murray
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