Doesn't make the slightest difference - still get null reference exception Also doens't explain why it worked in previous version of MD and touch
Also I have tried loading several examples from the Wally B etc book which worked fine before - I simply get SIGSEGV errors trying to run them Thanks anyway Yours in further desperation From: Jason Awbrey [mailto:[email protected]] Sent: 18 August 2011 13:34 To: [email protected] Cc: [email protected] Subject: Re: [MonoTouch] people picker problem after upgrading to touch 4 and MD2.8Alpha the first thing I'd try is to move the declaration "var ppvc" from your local scope and declare it at the class level instead. On Thu, Aug 18, 2011 at 7:02 AM, John Murray <[email protected]> wrote: 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 _______________________________________________ MonoTouch mailing list [email protected] http://lists.ximian.com/mailman/listinfo/monotouch
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