[Mono-osx] MonoMac NSTableView Scroll Crash

[Landon Campbell]

Hi everybody,
I'm a MonoMac noob, and I'm trying to get an NSTableView to work in my application. I followed two examples to implement my solution:
http://www.milkcarton.com/blog/2010/07/05/Databinding+To+An+NSTableView+With+A+MonoMac+App.aspxhttp://www.netneurotic.net/Mono/MonoMac-NSTableView.html
I created a datasource class according to these articles, and my NSTableView loads the data without any problem. Here's the basic code:
DataSource class:[Register("TableViewDataSource")]public class DashboardReportDataSource : NSTableViewDataSource{    private List<Reseller> _resellers;
    public DashboardReportDataSource ()    {        var domainRepository = new DomainRepository();	_resellers = domainRepository.GetClientResellers(161);    }
    [Export("numberOfRowsInTableView:")]    public int NumberOfRowsInTableView (NSTableView tableView)    {        if (_resellers == null) {	    return 0;	else {	    return _resellers.Count;	}    }
    [Export("tableView:objectValueForTableColumn:row:")]    public NSObject objectValueForTableColumn (NSTableView aTableView, NSTableColumn aTableColumn, int rowIndex)    {        switch (aTableColumn.Identifier.ToString()){	    case "colProductId" :	        return new NSString(_resellers[rowIndex].Id.ToString());            case "colResellerId" :	        return new NSString(_resellers[rowIndex].Name);	    default:	        return new NSString("");         }    }}
Populate table in my custom NSView class:public override void LoadView (){    base.LoadView ();    tblDashboardReport.DataSource = new DashboardReportDataSource();}
My domain repository calls SQL Server and populates the generic list. Like I said, the load is fine (actually super-fast), but if I scroll to the bottom of my table view, then start to scroll back up, the app crashes, every single time. This is the error I'm getting:
System.MissingMethodException: No constructor found for DashboardReportDataSource::.ctor(System.IntPtr)  at System.Activator.CreateInstance (System.Type type, BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes) [0x000fd] in /Users/builder/data/lanes/mono-mac-ui-refresh-2-10/2baeee2f/source/bockbuild/profiles/mono-2-10/build-root/mono-2.10.11/_build/mono-2.10.11.git/mcs/class/corlib/System/Activator.cs:280  at System.Activator.CreateInstance (System.Type type, System.Object[] args, System.Object[] activationAttributes) [0x00000] in /Users/builder/data/lanes/mono-mac-ui-refresh-2-10/2baeee2f/source/bockbuild/profiles/mono-2-10/build-root/mono-2.10.11/_build/mono-2.10.11.git/mcs/class/corlib/System/Activator.cs:234  at System.Activator.CreateInstance (System.Type type, System.Object[] args) [0x00000] in /Users/builder/data/lanes/mono-mac-ui-refresh-2-10/2baeee2f/source/bockbuild/profiles/mono-2-10/build-root/mono-2.10.11/_build/mono-2.10.11.git/mcs/class/corlib/System/Activator.cs:229  at MonoMac.ObjCRuntime.Runtime.GetNSObject (IntPtr ptr) [0x00000] in <filename unknown>:0  at MonoMac.ObjCRuntime.NSObjectMarshaler`1[MonoMac.Foundation.NSObject].MarshalNativeToManaged (IntPtr handle) [0x00000] in <filename unknown>:0  at (wrapper native-to-managed) object:[DashboardReportDataSource:MonoMac.Foundation.NSObject objectValueForTableColumn(MonoMac.AppKit.NSTableView, MonoMac.AppKit.NSTableColumn, Int32)] (MonoMac.Foundation.NSObject,MonoMac.ObjCRuntime.Selector,MonoMac.AppKit.NSTableView,MonoMac.AppKit.NSTableColumn,int)  at (wrapper managed-to-native) MonoMac.AppKit.NSApplication:NSApplicationMain (int,string[])  at MonoMac.AppKit.NSApplication.Main (System.String[] args) [0x00000] in <filename unknown>:0  at BPA.UI.Mono.Mac.MainClass.Main (System.String[] args) [0x00005] in /Users/User/Projects/Repositories/BPA.UI.Mono/BPA.UI.Mono.Mac/Main.cs:14
Seems like an odd issue, since it claims the class doesn't have a constructor, which it obviously does. I could really use some help -- does anybody have any idea what I'm doing wrong?
System:Mono 2.10.11MonoDevelop 3.1.1XCode 4.6Lastest MonoMac add-in (Xamarin.Mac 3.1.1, open-source)Mac OS X Lion (running in VMWare Player)
Thanks for you help,Landon 		 	   		  
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