The scrollbar on UWP is blocking the content (including the options button which is also not clickable because of it

Workaround: Add a style for the column header and apply margin to the Options button:

 

 

 

 

Some cultures have Monday as a first day of week. When device language and culture change, the RadCalendar first day of week remains Sunday, not Monday. 
There is an inconsistence in the behavior. Android Calendar changes the day to Monday. iOS not. 

Having a ComboBox inside the RadListView ItemTemplate. 

Binding the ComboBox SelectedItems. 
On UWP when PropertyChanged is called on an item in the ListView, it fires the ComboBox SelectedItems CollectionChanged with action Remove, which is wrong behavior. And as a result the ComboBox SelectedItems collection is cleared. 

On Android an iOS works as expected, the ComboBox SelectedItems collection is not cleared. 

The value of DisplayedTextFontSize is not respected when DisplayedTextFont is set on iOS.

LongPress is called on element that is already disposed. 

ObjectDisposedException is thrown:

at Telerik.XamarinForms.Common.NativeGestureRecognizer.ToDip
 at Telerik.XamarinForms.Common.GestureListener.OnLongPress

Stack-Trace

 

The issue occurs on the following device:

Android: 12
Manufacturer: samsung
Model: SM-G970U

I see there are Tokens inside of the AutoComplete but standalone options would be great to have in the Telerik UI for Xamarin suite

The app crashes randomly when scrolling through the images loaded from the tagit app. 
The crash occurs on iPhone SE 2020 iOS 14.8, it doesn't crash every time you scroll through the images, the crash appears randomly.  

crash on iPhone X iOS 14.8

The issue cannot be reproduced on iPhone 12 ProMax iOS 14.8.

add PivotGrid control. UI for WPF has this control: https://docs.telerik.com/devtools/wpf/controls/radpivotgrid/overview 

Appointments in MonthView can be shown inside day cells as shapes or as text (with and without shape) - this is controlled by DisplayMode  property of the AppointmentsStyle.

Currently, when using Text DisplayMode there is an additional label indicating the amount of the appointments for a certain day that remain hidden (due to not enough space).  We should provide some kind of indication in case of Shape DisplayMode that there are more appointments inside the day cell.

When the DataGrid a few rows of data and scrolls to page 3 or above, the edit mode will be cancelled quickly and cannot be edited.

 

 

 

We are attempting to use the chart's CartesianPlotBandAnnotation to highlight a section of a graph on a DateTimeContinuousAxis.  This works well on Android, but in our code it produces an exception on iOS (stack trace below).

I attempted to reproduce the problem with the SDKBrowser solution.  I converted the PlotBandAnnotationsCSharp to use a DateTimeContinuousAxis on the horizontal axis, and TemporalData for the ViewModel. When I try to run this on an iOS simulator, it doesn't even navigate to the page; maybe an exception is being thrown and caught that I can't see.

I'm attaching the revised SDKBrowser solution, and including the stack trace from our app (below).

 

System.ArgumentNullException: Value cannot be null.
Parameter name: minimum
  at TelerikUI.TKRange..ctor (Foundation.NSObject minimum, Foundation.NSObject maximum) [0x0000e] in <20898b345e0a4b08b39b1ef59a6e7021>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.PlotBandAnnotationAdapter.UpdateCore (Telerik.XamarinForms.Chart.CartesianPlotBandAnnotation sourceOwner, TelerikUI.TKChartBandAnnotation targetOwner, System.String propertyName, Telerik.XamarinForms.Common.IParentElement sourceOwnerRoot, System.Object targetOwnerRoot) [0x0006d] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.Chart.ChartElementFacadeAdapter`2[S,T].Update (System.Object sourceOwner, System.Object targetOwner, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00000] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.Common.XamarinToNativeControlExtensions.Update[T,K] (T nativeElement, K xfЕlement, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00031] in <a803b4fb350e421cab61e2cee294d08a>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.CartesianChartAdapter.UpdateAnnotations (Telerik.XamarinForms.Chart.RadCartesianChart sourceOwner, TelerikUI.TKChart targetOwner) [0x0002f] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.CartesianChartAdapter.UpdateCore (Telerik.XamarinForms.Chart.RadCartesianChart sourceOwner, Telerik.XamarinForms.ChartRenderer.iOS.TKExtendedChart targetOwner, System.String propertyName, Telerik.XamarinForms.Common.IParentElement sourceOwnerRoot, System.Object targetOwnerRoot) [0x0004d] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.BaseChartAdapter`1[S].Update (System.Object sourceOwner, System.Object targetOwner, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00000] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.Common.XamarinToNativeControlExtensions.Update[T,K] (T nativeElement, K xfЕlement, System.String propertyName, System.Object sourceOwnerRoot, System.Object targetOwnerRoot) [0x00031] in <a803b4fb350e421cab61e2cee294d08a>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.BaseChartRenderer`1[T].OnElementAttached (T newElement) [0x00069] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.ChartRenderer.iOS.CartesianChartRenderer.OnElementAttached (Telerik.XamarinForms.Chart.RadCartesianChart newElement) [0x00000] in <510bffb3000f45598b357d8e04d38717>:0
  at Telerik.XamarinForms.Common.iOS.IosRendererBase`2[S,T].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) [0x0003f] in <a803b4fb350e421cab61e2cee294d08a>:0
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].SetElement (TElement element) [0x0017a] in <1d764fcfefe54199aacfcb4c6acaaa69>:0
  at Xamarin.Forms.Platform.iOS.VisualElementRenderer`1[TElement].Xamarin.Forms.Platform.iOS.IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) [0x00000] in <1d764fcfefe54199aacfcb4c6acaaa69>:0
  at Xamarin.Forms.Platform.iOS.Platform.CreateRenderer (Xamarin.Forms.VisualElement element) [0x00014] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Platform.iOS/Platform.cs:227
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (Xamarin.Forms.VisualElement view) [0x0003e] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Platform.iOS/VisualElementPackager.cs:115
  at Xamarin.Forms.Platform.iOS.VisualElementPackager.OnChildAdded (System.Object sender, Xamarin.Forms.ElementEventArgs e) [0x0000f] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Platform.iOS/VisualElementPackager.cs:171
  at Xamarin.Forms.Element.OnChildAdded (Xamarin.Forms.Element child) [0x0000f] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/Element.cs:318
  at Xamarin.Forms.VisualElement.OnChildAdded (Xamarin.Forms.Element child) [0x00000] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/VisualElement.cs:774
  at Xamarin.Forms.Layout`1[T].OnChildAdded (Xamarin.Forms.Element child) [0x00000] in <363bc782c0c446ce85b9858aaa9fe112>:0
  at Xamarin.Forms.Layout.OnInternalAdded (Xamarin.Forms.View view) [0x0001d] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/Layout.cs:432
  at Xamarin.Forms.Layout.InternalChildrenOnCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00080] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/Layout.cs:422
  at 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 <89680362e8f5413398b8929f86f087a0>:0
  at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) [0x00009] in <89680362e8f5413398b8929f86f087a0>:0
  at System.Collections.ObjectModel.ObservableCollection`1[T].InsertItem (System.Int32 index, T item) [0x0001a] in <89680362e8f5413398b8929f86f087a0>:0
  at System.Collections.ObjectModel.Collection`1[T].Add (T item) [0x00020] in <da8885cdf78b449d96de00cdb9d47225>:0
  at Xamarin.Forms.ObservableWrapper`2[TTrack,TRestrict].Add (TRestrict item) [0x0004b] in <363bc782c0c446ce85b9858aaa9fe112>:0
  at VuSitu.LiveReadingsGraphingPage.FullScreenGraph (VuSitu.LiveReadingsGraphingPage+ParameterAdapter+ParameterData parameter) [0x007a2] in /Users/kbyers/mobile-apps/JohnnyFive/VuSitu/LiveReadings/LiveReadingsGraphingPage.cs:1111
  at VuSitu.LiveReadingsGraphingPage+ParameterGraph+<>c__DisplayClass0_0.<.ctor>b__2 () [0x00000] in /Users/kbyers/mobile-apps/JohnnyFive/VuSitu/LiveReadings/LiveReadingsGraphingPage.cs:1580
  at Xamarin.Forms.Command+<>c__DisplayClass4_0.<.ctor>b__0 (System.Object o) [0x00000] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/Command.cs:74
  at Xamarin.Forms.Command.Execute (System.Object parameter) [0x00000] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/Command.cs:112
  at Xamarin.Forms.TapGestureRecognizer.SendTapped (Xamarin.Forms.View sender) [0x00018] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Core/TapGestureRecognizer.cs:44
  at Xamarin.Forms.Platform.iOS.EventTracker+<>c__DisplayClass15_0.<CreateRecognizerHandler>b__0 (UIKit.UITapGestureRecognizer sender) [0x0008f] in /Users/admin/workspace/Xamarin.Forms/Xamarin.Forms/src/Xamarin.Forms.Platform.iOS/EventTracker.cs:208
  at UIKit.UITapGestureRecognizer+Callback.Activated (UIKit.UITapGestureRecognizer sender) [0x00000] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIGestureRecognizer.cs:220
  at 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 /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:86
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Users/builder/azdo/_work/1/s/xamarin-macios/src/UIKit/UIApplication.cs:65
  at VuSitu.iOS.Application.Main (System.String[] args) [0x0005e] in /Users/kbyers/mobile-apps/JohnnyFive/VuSitu.iOS/Main.cs:27

Currently the control ignores IsTabStop and TabIndex properties for keyboard tab navigation.

We need to show floor maps developed in SVG in RadMap control.

currently ScrollItemIntoView simply scrolls to the item but there is no option to set it to the top or bottom etc like ScrollToItem does in TKListView. this would be a very useful feature to have as currently it is inconsistent where the item ends up so it isn't obvious to the user

I'd like a little advice and suggest a new control.

Prior to iOS14 we used https://github.com/jamesmontemagno/MediaPlugin as our media picker in our Xamarin forms app.

Since https://github.com/jamesmontemagno/MediaPlugin does not work on iOS14 and is not being actively developed, we switched to xamarin/Essentials and now face a rotation issue (https://github.com/xamarin/Essentials/issues/1514) for a long time.

There seems not to be any alternatives!

Currently Filtering UI can be shown only from the OptionsButton due to the way the OptionsTapContext is created and Grouping UI can be shown only from within the Filtering UI.

when the device culture is changed to Arabic, the date picker and datetime picker do not respect the Hijri calendar.

Currently, the supported calendar is the Gregorian calendar.