I've got two segmented controls.   One crashes when I leave the page and one crashes as I enter the page.  I had the previous version of 2019.2.513.1 and loaded the latest with the same result.

Im using Xamarin.Forms 4.0.0.425677

Launched application 'com.catchstat.catchstatDev' on 'iPhone Xs' with pid 1574
2019-05-25 15:05:02.672 CatchStat.iOS[1574:550853] Xamarin.iOS: Successfully received USB connection from the IDE on port 10000, fd: 6
2019-05-25 15:05:02.673 CatchStat.iOS[1574:550853] Xamarin.iOS: Processing: 'start profiler: no'
2019-05-25 15:05:02.673 CatchStat.iOS[1574:550827] Xamarin.iOS: Profiler not loaded (disabled)
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Mono.Security.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/OpenTK-1.0.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Xml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.Forms.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.Forms.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Net.Http.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.ServiceModel.Internals.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Runtime.Serialization.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.Forms.Platform.iOS.dll [External]
Thread started:  #2
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.Essentials.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Xamarin.Forms.Xaml.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.Xamarin.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.Common.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/SkiaSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/SkiaSharp.Views.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/SkiaSharp.Views.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.SkiaSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.Primitives.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.DataControls.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.Input.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Telerik.XamarinForms.Chart.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/FFImageLoading.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/WebP.Touch.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/FFImageLoading.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/FFImageLoading.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/FFImageLoading.Forms.Platform.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/zxing.portable.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/ZXing.Net.Mobile.Core.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/ZXing.Net.Mobile.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/ZXingNetMobile.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/ZXing.Net.Mobile.Forms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.Licensing.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.Core.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.Cards.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.Core.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.Cards.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfComboBox.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfComboBox.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfMaskedEdit.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfMaskedEdit.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfNumericTextBox.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfNumericTextBox.XForms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Syncfusion.SfNumericTextBox.XForms.iOS.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Xml.Linq.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Web.Services.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/RestSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Numerics.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/System.Data.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Newtonsoft.Json.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Microsoft.CSharp.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Prism.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Prism.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStatAPI.dll
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Plugin.Multilingual.Abstractions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/FFImageLoading.Transformations.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/ElegantTabs.Abstraction.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Unity.Abstractions.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Unity.Container.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Prism.Unity.Forms.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/Plugin.Multilingual.dll [External]
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.dll
Loaded assembly: /private/var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS.exe
Resolved pending breakpoint at 'AppDelegate.cs:79,21' to void CatchStatMobileApp.iOS.AppDelegate.FailedToRegisterForRemoteNotifications (UIKit.UIApplication application, Foundation.NSError error) [0x00001].
Thread started: <Thread Pool> #3
Thread started: <Thread Pool> #4
Thread started: <Thread Pool> #5
Thread started: <Thread Pool> #6
TOKEN REC: 
New Notification Enrollment Call Create
2019-05-25 15:05:03.970 CatchStat.iOS[1574:550827] Xamarin.iOS: Unable to locate assembly 'CatchStat.resources' (culture: 'en-US')
2019-05-25 15:05:03.970 CatchStat.iOS[1574:550827] Xamarin.iOS: Unable to locate assembly 'CatchStat.resources' (culture: 'en-US')
2019-05-25 15:05:03.971 CatchStat.iOS[1574:550827] Xamarin.iOS: Unable to locate assembly 'CatchStat.resources' (culture: 'en')
2019-05-25 15:05:03.971 CatchStat.iOS[1574:550827] Xamarin.iOS: Unable to locate assembly 'CatchStat.resources' (culture: 'en')
Thread started:  #7
In TournamentCategoriesApi Using BearerToken:  KOmLkFBcpf8Ab4SP4HoIk4CKpiEXqNKk8ywSWagy
Thread started:  #8
Thread started: <Thread Pool> #9
Thread started: <Thread Pool> #10
Thread started: <Thread Pool> #11
Thread started: <Thread Pool> #12
Thread started: <Thread Pool> #13
Thread started: <Thread Pool> #14
Thread started: <Thread Pool> #15
2019-05-25 15:05:04.255 CatchStat.iOS[1574:550827] WARNING: This app's CFBundleDevelopmentRegion is not a string value. This can lead to unexpected results at runtime. Please change CFBundleDevelopmentRegion in your Info.plist to a string value.
TOKEN: f2b7961b 1eb8a098 343e7a47 b7ae4dcb 767fb334 3042221d a9fc3a2e 94eac671
Thread started:  #16
Resolved pending breakpoint at 'App.xaml.cs:342,1' to void CatchStat.App.<HandleTokenUpdateAction>d__16.MoveNext () [0x0064c].
Resolved pending breakpoint at 'App.xaml.cs:304,1' to void CatchStat.App.<HandleTokenUpdateAction>d__16.MoveNext () [0x005de].
Resolved pending breakpoint at 'ToolsHelper.cs:112,1' to void CatchStat.Helpers.ToolsHelper.<SaveUserDeviceID>d__13.MoveNext () [0x000b8].
Are you calling this????
 IsActive Changed: True

In TournamentCategoriesApi Using BearerToken:  KOmLkFBcpf8Ab4SP4HoIk4CKpiEXqNKk8ywSWagy
In TournamentCatchLogApi Using BearerToken:  KOmLkFBcpf8Ab4SP4HoIk4CKpiEXqNKk8ywSWagy
Thread finished: <Thread Pool> #5
Thread finished: <Thread Pool> #6
2019-05-25 15:05:35.201 CatchStat.iOS[1574:550827] 
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
  at Telerik.XamarinForms.InputRenderer.iOS.SegmentedControlRenderer.OnElementDetached (Telerik.XamarinForms.Input.RadSegmentedControl oldElement) [0x00006] in <275d9955c76f40a582584608591bfb70>:0 
  at Telerik.XamarinForms.Common.iOS.IosRendererBase`2[S,T].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) [0x00016] in <5b048be91e304d71aa9ca2dce08237df>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x0012a] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x0008c] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].Dispose (System.Boolean disposing) [0x0005c] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.ScrollViewRenderer.Dispose (System.Boolean disposing) [0x0003e] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildRemoved (Xamarin.Forms.VisualElement view) [0x0003e] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildRemoved (System.Object sender, Xamarin.Forms.ElementEventArgs e) [0x0000f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Element.OnChildRemoved (Xamarin.Forms.Element child) [0x00007] in D:\a\1\s\Xamarin.Forms.Core\Element.cs:337 
  at Xamarin.Forms.VisualElement.OnChildRemoved (Xamarin.Forms.Element child) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\VisualElement.cs:750 
  at Xamarin.Forms.Layout`1[T].OnChildRemoved (Xamarin.Forms.Element child) [0x00000] in <90e23d10107449038a86cd7e79ab6813>:0 
  at Xamarin.Forms.Layout.OnInternalRemoved (Xamarin.Forms.View view) [0x00012] in D:\a\1\s\Xamarin.Forms.Core\Layout.cs:464 
  at Xamarin.Forms.Layout.InternalChildrenOnCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x0002b] in D:\a\1\s\Xamarin.Forms.Core\Layout.cs:427 
  at (wrapper delegate-invoke) <Module>.invoke_void_object_NotifyCollectionChangedEventArgs(object,System.Collections.Specialized.NotifyCollectionChangedEventArgs)
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00018] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) [0x00009] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.ObservableCollection`1[T].RemoveItem (System.Int32 index) [0x00021] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.Collection`1[T].Remove (T item) [0x00027] in <91e0283eca55453fa9b161bf2de4edfd>:0 
  at Xamarin.Forms.ObservableWrapper`2[TTrack,TRestrict].Remove (TRestrict item) [0x00035] in <90e23d10107449038a86cd7e79ab6813>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.set_VisibleContent (Xamarin.Forms.View value) [0x0001c] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.DisplayActualContent () [0x00070] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.OnIsBusyPropertyChanged (Telerik.XamarinForms.Primitives.RadBusyIndicator indicator, System.Boolean oldValue, System.Boolean newValue) [0x00000] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Common.BindablePropertyExtensions+<>c__DisplayClass6_0`2[TDeclarer,TPropertyType].<Create>b__0 (Xamarin.Forms.BindableObject b, System.Object o, System.Object n) [0x00000] in <5b048be91e304d71aa9ca2dce08237df>:0 
  at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty property, Xamarin.Forms.BindableObject+BindablePropertyContext context, System.Object value, System.Boolean currentlyApplying, Xamarin.Forms.Internals.SetValueFlags attributes, System.Boolean silent) [0x00120] in D:\a\1\s\Xamarin.Forms.Core\BindableObject.cs:445 
  at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty property, System.Object value, Xamarin.Forms.Internals.SetValueFlags attributes, Xamarin.Forms.BindableObject+SetValuePrivateFlags privateAttributes) [0x00173] in D:\a\1\s\Xamarin.Forms.Core\BindableObject.cs:379 
  at Xamarin.Forms.BindingExpression.ApplyCore (System.Object sourceObject, Xamarin.Forms.BindableObject target, Xamarin.Forms.BindableProperty property, System.Boolean fromTarget) [0x00220] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:167 
  at Xamarin.Forms.BindingExpression.Apply (System.Boolean fromTarget) [0x0003e] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:57 
  at Xamarin.Forms.BindingExpression+BindingExpressionPart.<PropertyChanged>b__49_0 () [0x00000] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:618 
  at Foundation.NSAsyncActionDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSAction.cs:152 
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:79 
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0002c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:63 
  at CatchStatMobileApp.iOS.Application.Main (System.String[] args) [0x00001] in /Users/brianadams/Projects/CatchStat/CatchStatApp/CatchStat.iOS/Main.cs:17 
2019-05-25 15:05:35.212 CatchStat.iOS[1574:550827] Unhandled managed exception:
Object reference not set to an instance of an object (System.NullReferenceException)
  at Telerik.XamarinForms.InputRenderer.iOS.SegmentedControlRenderer.OnElementDetached (Telerik.XamarinForms.Input.RadSegmentedControl oldElement) [0x00006] in <275d9955c76f40a582584608591bfb70>:0 
  at Telerik.XamarinForms.Common.iOS.IosRendererBase`2[S,T].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) [0x00016] in <5b048be91e304d71aa9ca2dce08237df>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x0012a] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x0008c] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.ViewRenderer`2[TView,TNativeView].Dispose (System.Boolean disposing) [0x0005c] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.ScrollViewRenderer.Dispose (System.Boolean disposing) [0x0003e] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose (System.Boolean disposing) [0x0003f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Dispose () [0x00000] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Dispose (System.Boolean disposing) [0x00058] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Foundation.NSObject.Dispose () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSObject2.cs:147 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildRemoved (Xamarin.Forms.VisualElement view) [0x0003e] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildRemoved (System.Object sender, Xamarin.Forms.ElementEventArgs e) [0x0000f] in <db147fad2aa9412c845ff0ead92dfe20>:0 
  at Xamarin.Forms.Element.OnChildRemoved (Xamarin.Forms.Element child) [0x00007] in D:\a\1\s\Xamarin.Forms.Core\Element.cs:337 
  at Xamarin.Forms.VisualElement.OnChildRemoved (Xamarin.Forms.Element child) [0x00000] in D:\a\1\s\Xamarin.Forms.Core\VisualElement.cs:750 
  at Xamarin.Forms.Layout`1[T].OnChildRemoved (Xamarin.Forms.Element child) [0x00000] in <90e23d10107449038a86cd7e79ab6813>:0 
  at Xamarin.Forms.Layout.OnInternalRemoved (Xamarin.Forms.View view) [0x00012] in D:\a\1\s\Xamarin.Forms.Core\Layout.cs:464 
  at Xamarin.Forms.Layout.InternalChildrenOnCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x0002b] in D:\a\1\s\Xamarin.Forms.Core\Layout.cs:427 
  at (wrapper delegate-invoke) <Module>.invoke_void_object_NotifyCollectionChangedEventArgs(object,System.Collections.Specialized.NotifyCollectionChangedEventArgs)
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00018] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) [0x00009] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.ObservableCollection`1[T].RemoveItem (System.Int32 index) [0x00021] in <cfeb875a95684ad09f58680b02e4aa2c>:0 
  at System.Collections.ObjectModel.Collection`1[T].Remove (T item) [0x00027] in <91e0283eca55453fa9b161bf2de4edfd>:0 
  at Xamarin.Forms.ObservableWrapper`2[TTrack,TRestrict].Remove (TRestrict item) [0x00035] in <90e23d10107449038a86cd7e79ab6813>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.set_VisibleContent (Xamarin.Forms.View value) [0x0001c] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.DisplayActualContent () [0x00070] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Primitives.RadBusyIndicator.OnIsBusyPropertyChanged (Telerik.XamarinForms.Primitives.RadBusyIndicator indicator, System.Boolean oldValue, System.Boolean newValue) [0x00000] in <1a0156d243a8403ab5842ede52586f1b>:0 
  at Telerik.XamarinForms.Common.BindablePropertyExtensions+<>c__DisplayClass6_0`2[TDeclarer,TPropertyType].<Create>b__0 (Xamarin.Forms.BindableObject b, System.Object o, System.Object n) [0x00000] in <5b048be91e304d71aa9ca2dce08237df>:0 
  at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty property, Xamarin.Forms.BindableObject+BindablePropertyContext context, System.Object value, System.Boolean currentlyApplying, Xamarin.Forms.Internals.SetValueFlags attributes, System.Boolean silent) [0x00120] in D:\a\1\s\Xamarin.Forms.Core\BindableObject.cs:445 
  at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty property, System.Object value, Xamarin.Forms.Internals.SetValueFlags attributes, Xamarin.Forms.BindableObject+SetValuePrivateFlags privateAttributes) [0x00173] in D:\a\1\s\Xamarin.Forms.Core\BindableObject.cs:379 
  at Xamarin.Forms.BindingExpression.ApplyCore (System.Object sourceObject, Xamarin.Forms.BindableObject target, Xamarin.Forms.BindableProperty property, System.Boolean fromTarget) [0x00220] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:167 
  at Xamarin.Forms.BindingExpression.Apply (System.Boolean fromTarget) [0x0003e] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:57 
  at Xamarin.Forms.BindingExpression+BindingExpressionPart.<PropertyChanged>b__49_0 () [0x00000] in D:\a\1\s\Xamarin.Forms.Core\BindingExpression.cs:618 
  at Foundation.NSAsyncActionDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/Foundation/NSAction.cs:152 
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:79 
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0002c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.8.0.2/src/Xamarin.iOS/UIKit/UIApplication.cs:63 
  at CatchStatMobileApp.iOS.Application.Main (System.String[] args) [0x00001] in /Users/brianadams/Projects/CatchStat/CatchStatApp/CatchStat.iOS/Main.cs:17 

=================================================================
Native Crash Reporting
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

=================================================================
Basic Fault Adddress Reporting
=================================================================
Memory around native instruction pointer (0x1aa9c90cc):0x1aa9c90bc  fd 7b c1 a8 c0 03 5f d6 10 29 80 d2 01 10 00 d4  .{...._..)......
0x1aa9c90cc  c3 00 00 54 fd 7b bf a9 fd 03 00 91 3f d5 ff 97  ...T.{......?...
0x1aa9c90dc  bf 03 00 91 fd 7b c1 a8 c0 03 5f d6 90 29 80 d2  .....{...._..)..
0x1aa9c90ec  01 10 00 d4 c3 00 00 54 fd 7b bf a9 fd 03 00 91  .......T.{......

=================================================================
Native stacktrace:
=================================================================
0x108055a34 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10804bc10 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1aaa3b508 - /usr/lib/system/libsystem_platform.dylib : <redacted>
0x1aaa3fa88 - /usr/lib/system/libsystem_pthread.dylib : pthread_kill
0x1aa92214c - /usr/lib/system/libsystem_c.dylib : abort
0x1081e9094 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : xamarin_get_block_descriptor
0x1080b54f4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x10804b638 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10804a154 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x108040b00 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1 - Unknown
0x1067c5b80 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056cf72c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056d00a0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056c7ca4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054c73f4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca874 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca2f0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10573e6ec - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054c73f4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca874 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca2f0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056cffb0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054c73f4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca874 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056ca2f0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056cffb0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054c73f4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056cb438 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1056cbbfc - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10499917c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104b01708 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1049f8d90 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1049ff474 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1049fec50 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x105012a6c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104fa1b6c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104fa1d40 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104fa1748 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10473f544 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104a32eb0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x106571fd4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1065746d0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1065738f0 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10664dd8c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104932d48 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104932464 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104943468 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104941edc - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104949980 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054c5e04 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1048717f8 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10805d830 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x108100c48 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x10810455c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x1044d7280 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1044d9a44 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1aa037454 - /usr/lib/libobjc.A.dylib : <redacted>
0x1ab8d5048 - /System/Library/Frameworks/Foundation.framework/Foundation : <redacted>
0x1aadc6444 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
0x1aadc63c0 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
0x1aadc5c7c - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
0x1aadc0950 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : <redacted>
0x1aadc0254 - /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation : CFRunLoopRunSpecific
0x1acfffd8c - /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices : GSEventRunModal
0x1d81084c0 - /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : UIApplicationMain
0x105513494 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10547690c - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1054768cc - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x104525b10 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1048717f8 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x10805d830 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x108100c48 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x108106e48 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : mono_pmip
0x10803c2b4 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1081f9e48 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : _Z9__isctypeim
0x104522934 - /var/containers/Bundle/Application/E9F3C2E7-0644-4779-A17B-FFC883A8496A/CatchStat.iOS.app/CatchStat.iOS : (null)
0x1aa87cfd8 - /usr/lib/system/libdyld.dylib : <redacted>

=================================================================
Managed Stacktrace:
=================================================================
=================================================================

VISUAL STUDIO ABOUT

=========================================================================================================

Visual Studio Professional 2019 for Mac
Version 8.0.8 (build 2)
Installation UUID: 8ee74174-2582-485b-ae07-425274b5c17a
GTK+ 2.24.23 (Raleigh theme)
Xamarin.Mac 5.6.0.2 (d16-0 / 040682909)

Package version: 518010003

Mono Framework MDK
Runtime:
Mono 5.18.1.3 (2018-08/fdb26b0a445) (64-bit)
Package version: 518010003

NuGet
Version: 4.8.2.5835

.NET Core
Runtime: /usr/local/share/dotnet/dotnet
Runtime Versions:
2.1.9
2.1.8
2.1.7
2.1.2
2.0.5
SDK: /usr/local/share/dotnet/sdk/2.1.505/Sdks
SDK Versions:
2.1.505
2.1.504
2.1.503
2.1.302
2.1.4
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.18.1/lib/mono/msbuild/15.0/bin/Sdks

Xamarin.Profiler
Version: 1.6.9
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler

Updater
Version: 11

Apple Developer Tools
Xcode 10.2.1 (14490.122)
Build 10E1001

Xamarin.Mac
Version: 5.8.0.0 (Visual Studio Professional)
Hash: 0aa84521
Branch: d16-0
Build date: 2019-04-02 16:01:19-0400

Xamarin.iOS
Version: 12.8.0.2 (Visual Studio Professional)
Hash: f2248ae6
Branch: d16-0
Build date: 2019-04-23 11:59:04-0400

Xamarin Designer
Version: 4.17.4.418
Hash: 3d086e814
Branch: remotes/origin/d16-0
Build date: 2019-04-01 09:20:10 UTC

Xamarin.Android
Version: 9.2.3.0 (Visual Studio Professional)
Android SDK: /Users/brianadams/Library/Android/sdk
Supported Android versions:
4.4 (API level 19)
5.0 (API level 21)
5.1 (API level 22)
6.0 (API level 23)
7.0 (API level 24)
7.1 (API level 25)
8.0 (API level 26)
8.1 (API level 27)

SDK Tools Version: 26.1.1
SDK Platform Tools Version: 28.0.1
SDK Build Tools Version: 28.0.3

Build Information: 
Mono: mono/mono/2018-08-rc@5ac37ccd385
Java.Interop: xamarin/java.interop/d16-0@c987483
LibZipSharp: grendello/LibZipSharp/d16-1@44de300
LibZip: nih-at/libzip/rel-1-5-1@b95cf3f
MXE: xamarin/mxe/xamarin@b9cbb535
ProGuard: xamarin/proguard/master@905836d
SQLite: xamarin/sqlite/3.26.0@325e91a
Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-0@0a7edd6

Microsoft Mobile OpenJDK
Java SDK: /Users/brianadams/Library/Developer/Xamarin/jdk/microsoft_dist_openjdk_8.0.25
1.8.0-25
Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL

Android Device Manager
Version: 1.2.0.14
Hash: 86df26f
Branch: remotes/origin/d16-0
Build date: 2019-05-16 16:08:28 UTC

Xamarin Inspector
Version: 1.4.3
Hash: db27525
Branch: 1.4-release
Build date: Mon, 09 Jul 2018 21:20:18 GMT
Client compatibility: 1

Build Information
Release ID: 800080002
Git revision: b891fe614b73bbd65c22967fb111cbd830f7fcdd
Build date: 2019-05-22 19:17:43+00
Build branch: release-8.0
Xamarin extensions: 62a26fe08bb2b9b5893bb0f46b1fc93994fd8c58

Operating System
Mac OS X 10.14.5
Darwin 18.6.0 Darwin Kernel Version 18.6.0
    Thu Apr 25 23:16:27 PDT 2019
    root:xnu-4903.261.4~2/RELEASE_X86_64 x86_64

Enabled user installed extensions
MFractor 3.8.2

I would like to have a message display along with the animation to let my users know exactly what is going on. But it looks like I can use EITHER the animation OR text and not both.

For instance, this displays ONLY my label:

I have a datagrid in which I fill it from a web services, I'm using a CellContentTemplate to integrate a checkbox, only when I try to assign the check it does not make the change.

<telerikGrid:RadDataGrid x:Name="RDG_Detalle" 
                                                 AutoGenerateColumns="False" 
                                                 SelectionMode="None"
                                                 UserEditMode="Cell" 
                                                 ItemsSource="{Binding}"
                                                 HorizontalOptions="FillAndExpand" 
                                                 VerticalOptions="FillAndExpand" 
                                                 UserFilterMode="Disabled" 
                                                 SelectionChanged="RDG_Detalle_SelectionChanged"
                                                 UserGroupMode="Disabled">
                            <telerikGrid:RadDataGrid.AlternateRowBackgroundStyle>
                                <telerikGrid:DataGridBorderStyle BackgroundColor="#D9D9D9"/>
                            </telerikGrid:RadDataGrid.AlternateRowBackgroundStyle>
                            <telerikGrid:RadDataGrid.Columns >
                                <telerikGrid:DataGridTemplateColumn HeaderText="Template Column" x:Name="pr">
                                    <telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                                        <DataTemplate>
                                            <!-- Your content -->
                                            <telerikPrimitives:RadCheckBox x:Name="checkbox" IsChecked="{Binding Escaneado}">

                                            </telerikPrimitives:RadCheckBox>
                                        </DataTemplate>
                                    </telerikGrid:DataGridTemplateColumn.CellContentTemplate>
                                </telerikGrid:DataGridTemplateColumn>

                                <telerikGrid:DataGridNumericalColumn PropertyName="Cantidad" 
                                                                             HeaderText="Cantidad"
                                                                             CellContentFormat="{}{0:N2}"
                                                                             CanUserEdit="True" 
                                                                             SizeMode="Fixed"/>


                                <telerikGrid:DataGridTextColumn PropertyName="ProductoDescripcion" 
                                                                        HeaderText="Descripcion" 
                                                                        CanUserEdit="False"
                                                                        SizeMode="Stretch"/>
                                <telerikGrid:DataGridTextColumn PropertyName="AlmacenDescripcion" 
                                                                        HeaderText="Almacen" 
                                                                        CanUserEdit="False"
                                                                        SizeMode="Stretch"/>

                                <telerikGrid:DataGridTextColumn PropertyName="UbicacionDescripcion" 
                                                                        HeaderText="Ubicacion" 
                                                                        CanUserEdit="False"
                                                                        SizeMode="Stretch"/>

                                <telerikGrid:DataGridNumericalColumn PropertyName="Precio" 
                                                                             HeaderText="Precio"
                                                                             CellContentFormat="{}{0:C2}"
                                                                             CanUserEdit="True" 
                                                                             SizeMode="Fixed"/>

                                <telerikGrid:DataGridNumericalColumn PropertyName="Importe" 
                                                                             HeaderText="Importe"
                                                                             CellContentFormat="{}{0:C2}"
                                                                             CanUserEdit="True" 
                                                                             SizeMode="Fixed"/>

                                <telerikGrid:DataGridNumericalColumn PropertyName="Total" 
                                                                             HeaderText="Total"
                                                                             CellContentFormat="{}{0:C2}"
                                                                             CanUserEdit="True" 
                                                                             SizeMode="Fixed"/>

                                <telerikGrid:DataGridBooleanColumn PropertyName="IsEscaneado"
                                                                   HeaderText="IsEscaneado"/>
                                
                            </telerikGrid:RadDataGrid.Columns>
                        </telerikGrid:RadDataGrid>

 public bool IsEscaneado
        {
            get => Escaneado;
            set { Escaneado = value; OnPropertyChanged(); }
         
        }

        public event PropertyChangedEventHandler PropertyChanged;

        public ICommand IsCheckedChangedCommand { get; set; }

        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

hi,

is there any way to raise an event when user tap on Week Number Cell Type ?

"CellTapped" not firing when click on week number cell.

Can we add custom event for specific cell type ? , if YES How ?

Inside renderer or in  CustomizationRule

hi,

I have rad list with items, one item have two RadEntrys to enter Numeric values. All elements bound to vm or item model, basic MVVM.

Font family define in App.xaml based on OS.

if i use FontFamily="{StaticResource PlatformBaseFontFamily}" in RadEntry app crashes even if i remove Keyboard="Numeric".

my styling,

TextColor="{StaticResource BaseTextColor}" FontSize="Small" FontFamily="{StaticResource PlatformBaseFontFamily}"
                                                                       BorderStyle="{StaticResource StatRadEntryBorderStyle}

Questions:

1) How to fix this Error

2) RadEntrys in first item of list have no border around them, but other items have.(RadList Default item style in use)

Error Message

"Value cannot be null.
Parameter name: descriptor"

StackTrace

  at UIKit.UIFont._FromDescriptor (UIKit.UIFontDescriptor descriptor, System.nfloat pointSize) [0x00011] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.8.0.20/src/Xamarin.iOS/UIKit/UIFont.g.cs:106 
  at UIKit.UIFont.FromDescriptor (UIKit.UIFontDescriptor descriptor, System.nfloat pointSize) [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.8.0.20/src/Xamarin.iOS/UIKit/UIFont.cs:179 
  at Telerik.XamarinForms.InputRenderer.iOS.EntryAdapter.UpdateFont (Telerik.XamarinForms.Input.RadEntry sourceOwner, Telerik.XamarinForms.InputRenderer.iOS.BorderUITextField targetOwner) [0x0007a] in <0ae6931e45b44b43b9cb8fc35622cf29>:0 
  at Telerik.XamarinForms.InputRenderer.iOS.EntryAdapter.UpdateCore (Telerik.XamarinForms.Input.RadEntry sourceOwner, Telerik.XamarinForms.InputRenderer.iOS.BorderUITextField targetOwner, System.String propertyName) [0x0003a] in <0ae6931e45b44b43b9cb8fc35622cf29>:0 
  at Telerik.XamarinForms.Common.FacadeAdapterBase`2[S,T].Update (System.Object sourceOwner, System.Object targetOwner, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00000] in <be10754fe83d4f30b3bf0368f5628901>:0 
  at Telerik.XamarinForms.Common.XamarinToNativeControlExtensions.Update[T,K] (T nativeElement, K xfЕlement, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00031] in <be10754fe83d4f30b3bf0368f5628901>:0 
  at Telerik.XamarinForms.InputRenderer.iOS.EntryRenderer.OnElementAttached (Telerik.XamarinForms.Input.RadEntry newElement) [0x00046] in <0ae6931e45b44b43b9cb8fc35622cf29>:0 
  at Telerik.XamarinForms.Common.iOS.IosRendererBase`2[S,T].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) [0x00037] in <be10754fe83d4f30b3bf0368f5628901>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x00118] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0002a] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.Load () [0x0001e] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x000cc] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in <bc5a3d4303744676b3b36f4254bb697d>:0 
  at Telerik.XamarinForms.Common.RadPlatform.GetOrCreateRenderer (Xamarin.Forms.VisualElement visualElement) [0x00012] in <be10754fe83d4f30b3bf0368f5628901>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListView.UIListViewTemplateCell.PrepareCell () [0x00008] in <c9290182597745d6888354b6899be4aa>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListView.ListViewCellRenderer.UpdateCell (Telerik.XamarinForms.DataControlsRenderer.iOS.ListView.UIListViewCell cell, System.String propertyName) [0x00008] in <c9290182597745d6888354b6899be4aa>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListView.ListViewCellRenderer.UpdateCell (TelerikUI.TKListViewReusableCell reusableCell, System.String propertyName) [0x00000] in <c9290182597745d6888354b6899be4aa>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListView.UIListViewCell.UpdateCell (Telerik.XamarinForms.DataControls.RadListView owner, System.Object dataItem) [0x00021] in <c9290182597745d6888354b6899be4aa>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListViewDataSource.InitCell (TelerikUI.TKListView listView, Foundation.NSIndexPath indexPath, TelerikUI.TKListViewCell tkCell, Foundation.NSObject obj) [0x000b1] in <c9290182597745d6888354b6899be4aa>:0 
  at Telerik.XamarinForms.DataControlsRenderer.iOS.ListViewDataSource.InitCellCallback (TelerikUI.TKListView listView, Foundation.NSIndexPath indexPath, TelerikUI.TKListViewCell tkCell, Foundation.NSObject obj) [0x00006] in <c9290182597745d6888354b6899be4aa>:0 
  at ObjCRuntime.Trampolines+SDActionArity4V1.Invoke (System.IntPtr block, System.IntPtr arg1, System.IntPtr arg2, System.IntPtr arg3, System.IntPtr arg4) [0x00030] in <5bae2bad360b4d5da328902516ddda38>:0 
  at (wrapper native-to-managed) ObjCRuntime.Trampolines+SDActionArity4V1.Invoke(intptr,intptr,intptr,intptr,intptr)
--- End of stack trace from previous location where exception was thrown ---
  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.8.0.20/src/Xamarin.iOS/UIKit/UIApplication.cs:79 
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.8.0.20/src/Xamarin.iOS/UIKit/UIApplication.cs:63 
  at Medarbeideren.iOS.Application.Main (System.String[] args) [0x00001] in /Users/xamarindev/Documents/Medarbeideren/Medar_UI/Medarbeideren/Medarbeideren/Medarbeideren.iOS/Main.cs:17 

Hello,

I derived my class from ListViewTemplateCell and tried to overwrite OnAppearing/OnDisappearing to be notified when an item is actually visible.

But those callbacks are never hit. I also tried the Appearing-EventHandler, but this is not called either.

Seems like a bug?

Hello,

I'm working on a stacked bar chart for a client project and running into a bit of a snag with the amount of data being displayed in the chart. Below is a summary of the requirements I need to meet:

1. Each series is to contain twenty-four data points, one for each hour of the day (0-23)
2. A total of three separate series are to be rendered as a stacked bar chart
3. The chart shall initially display the seven hours closest to the current time of the user's device for the selected day
4. Horizontal scrolling shall be used to view remaining hours of the selected day

To add some clarity to point (3) above, if the current time is 5 PM, the chart needs to display data for 2 PM, 3 PM, 4 PM, 5 PM, 6 PM, 7 PM, and 8 PM. If the current time is 10 PM it'll display 5 PM, 6 PM, 7 PM, 8 PM, 9 PM, 10 PM and 11 PM.

I've seen this feature referred to as "Autoscrolling" by other UI toolkits for Xamarin Forms. How would I go about implementing this using Telerik UI?

Hi, I'm having issues with the Treeview control and a WebService we use to obtain the tree's data. Im trying to replicate the tree shown on the attached file. I'm able to obtain the data from our WebService on JSON format. However, when I try to build the tree, it shows empty. If I manually add items to the tree, based on your documentation, it works. I will greatly appreciate is someone can give me a hand on this issue. Thanks in advance.

Does anyone have an example of implementing keyboard navigation within a TreeView with checkboxes for a Xamarin UWP app? It would be nice to be able use the up and down keys to move within the tree.

Hi,

I recently updated Telerik controls. Since the update, EAN13Barcode component generate an exception if ShowText parameter is set true.

Exception

System.ArgumentNullException: Value cannot be null.
Parameter name: buffer

Sample

Thanks.