Description

Error is being encountered when using SelectionInput with Android, which is not being experienced on iOS using the same ListViewModels.

Step to Reproduce

Use a selection with deep navigation properties.

[Editor(EditorType.Selection)]
[SelectedItemBinding(Path = "Machine.Class")][SelectionInput(SelectionMode.Single, DisplayMemberPath = "ClassName", ListSourceType = typeof(ClassListViewModel))]
[Binding(Path = "Machine.Class.ClassName")]
public static Class Class;

And here's the ListViewModelBase... we decided to use ListViewModelBase because USING DataListViewModelBase creates more issues with this scenario.

    public class ClassListViewModel
        : ListViewModelBase<Class>
    {
        #region Field Variables

        private IQueryDefinition f_ViewQueryDefinition;

        #endregion

        #region Properties

        /// <summary>
        /// Gets the repository.
        /// </summary>
        /// <value>The repository.</value>
        public IClassRepository Repository
        {
            get
            {
                return Container.Current.CanResolve<IClassRepository>() ? 
                    Container.Current.Resolve<IClassRepository>() : 
                    new ClassRepository(null);
            }
        }

        /// <summary>
        /// Gets the view query.
        /// </summary>
        /// <value>The view query.</value>
        public IQueryDefinition ViewQuery
        {
            get
            {
                if (this.f_ViewQueryDefinition == null)
                    this.f_ViewQueryDefinition = new ClassQueryDefinition();

                return this.f_ViewQueryDefinition;
            }
        }

        /// <summary>
        /// Initializes the select parameter used when loading data.
        /// </summary>
        /// <returns>The select parameter.</returns>
        /// <param name="queryDescriptor">Query descriptor.</param>
        protected virtual SelectParameter InitializeSelectParameter(QueryDescriptor queryDescriptor)
        {
            var parameter = new SelectParameter(queryDescriptor);

            return parameter;
        }

        #endregion

        #region Methods

        public async override void Navigated(NavigatedParameter parameter)
        {
            this.ActivityPresenter.Show("Loading...", ActivityStyle.SmallIndicatorWithText, true);

            var p_SourceItems = await this.Repository.GetAllAsync(this.InitializeSelectParameter(this.ViewQuery.GetQueryDescriptor()));

            this.Items = p_SourceItems.Items.OrderBy(p => p.ClassName);

            this.ActivityPresenter.Hide();

            base.Navigated(parameter);
        }

        #endregion
    }

Actual Result

  --- End of managed exception stack trace ---
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
    ... 2 more
Caused by: md52ce486a14f4bcd95899665e9d932190b.JavaProxyThrowable: System.InvalidOperationException: Source object must implement INotifyPropertyChanged to support OneWay or TwoWay binding mode.
at d.RefreshPropertyPath () <IL 0x002cd, 0x00d43>
at d..ctor (Intersoft.Crosslight.BindingContext) <IL 0x00014, 0x00083>
at Intersoft.Crosslight.BindingContext..ctor (object,Intersoft.Crosslight.BindableProperty,Intersoft.Crosslight.BindingDescription) <IL 0x0001f, 0x000d7>
at Intersoft.Crosslight.ObjectExtensions.SetBinding (object,Intersoft.Crosslight.BindableProperty,Intersoft.Crosslight.BindingDescription) <IL 0x00003, 0x00063>
at Intersoft.Crosslight.Android.Views.FormComponentBase.ConfigureBinding (Android.Views.View,Intersoft.Crosslight.BindableProperty,Intersoft.Crosslight.Forms.BindingAttribute,Intersoft.Crosslight.BindingDescription) <IL 0x0003c, 0x0013b>
at Intersoft.Crosslight.Android.Views.FormComponentBase.PrepareBinding () <IL 0x00058, 0x001a6>
at Intersoft.Crosslight.Android.FormActivity`1<Mercury.Mobile.Core.ViewModels.Collection.TicketMachineEditViewModel>.OnCreate (Android.OS.Bundle) <0x0032b>
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) [0x00011] in /Users/builder/data/lanes/1978/f98871a9/source/monodroid/src/Mono.Android/platforms/android-15/src/generated/Android.App.Activity.cs:2212
at (wrapper dynamic-method) object.4fd6b648-21b8-4bb7-a768-68c4fdb3402c (intptr,intptr,intptr) <IL 0x00017, 0x00027>

    at md5de12dab3ecb38eed1becafd37f3acdc1.FormActivity_1.n_onCreate(Native Method)
    at md5de12dab3ecb38eed1becafd37f3acdc1.FormActivity_1.onCreate(FormActivity_1.java:53)
    at android.app.Activity.performCreate(Activity.java:5231)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
    at android.app.ActivityThread.access$800(ActivityThread.java:135)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5017)
    ... 5 more

Expected Result

NO ERRORS