If you set the RadDateTimePicker's IsVisible value to false and there is navigation occurring, the internal logic tries to dispose the RadPopup and an exception is thrown on Android.

This feedback item is to ask that you attempt to add internal protections to avoid this from happening.

Here is the exception stacktrace in case it is useful:

JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self)
JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters)
PopupWindow.set_ContentView (Android.Views.View value)
RadPopup.ClearAndroidContext ()
RadPopup.UpdatePopupContext ()
RadPopup.OnPlacementTargetRendererChanged ()
PopupBase.PlacementTarget_PropertyChanged (System.Object sender, System.ComponentModel.PropertyChangedEventArgs e)
PopupBase+<>c.<AttachWeakEventListenerForPlacementTargetPropertyChanged>b__99_0 (Telerik.XamarinForms.Primitives.PopupBase listener, System.Object sender, System.ComponentModel.PropertyChangedEventArgs eventArgs)
WeakEventListener`3[TListener,TEventSource,TEventArgs].OnEvent (System.Object sender, TEventArgs eventArgs)
(wrapper delegate-invoke) <Module>.invoke_void_object_PropertyChangedEventArgs(object,System.ComponentModel.PropertyChangedEventArgs)
BindableObject.OnPropertyChanged (System.String propertyName)
Element.OnPropertyChanged (System.String propertyName)
BindableObject.ClearValue (Xamarin.Forms.BindableProperty property, System.Boolean fromStyle, System.Boolean checkAccess)
BindableObject.ClearValue (Xamarin.Forms.BindableProperty property)
Platform+<>c__DisplayClass45_0.<Cleanup>g__DoCleanup|0 ()
Platform.Cleanup (System.Collections.Generic.List`1[T] viewsToRemove, System.Collections.Generic.List`1[T] renderersToDispose)
Platform.SetPage (Xamarin.Forms.Page newRoot)
Platform.Dispose ()
FormsAppCompatActivity.OnDestroy ()
Activity.n_OnDestroy (System.IntPtr jnienv, System.IntPtr native__this)
(wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.8(intptr,intptr)

It would be nice if we can just bind a .net DataTable or DateView as ItemsSource to the RadDataGrid.

Provide events raised when a new appointment is created and when an existing appointment is updated/deleted. 

there is a mistake with the accessibility modifier for `Telerik.XamarinForms.RichTextEditor.RichTextPasteType`. When it is Internal it's not possible to use the PasteCommand since it requires that type as input. 

Solution:

use reflection to get the enum

var assembly = typeof(RadRichTextEditor).Assembly;
var type = assembly.GetType("Telerik.XamarinForms.RichTextEditor.RichTextPasteType");
var obj = Enum.ToObject(type, 1);
await Clipboard.SetTextAsync("A pasted text");
var canExecute = richTextEditor.PasteCommand.CanExecute(obj);
richTextEditor.PasteCommand.Execute(obj);

There seems to be 2 issues with Telerik ui for xamarin and Xamarin.AndroidX.Core versions 1.3.2.2 and newer where A) Linker seems to be failing when set to "Sdk Assemblies Only" on Visual Studio 16.9.0.

The other issue is with Telerik RadListView and same  AndroidX.Core at runtime I am getting the following exception:

System.TypeLoadException: 'VTable setup of type Telerik.XamarinForms.DataControlsRenderer.Android.ListViewAccessibilityDelegateCompat failed'

Please advise

The App bar background color is gray, and the search bar doesn't look good with this black textcolor and dark gray background color. 



The default SearchBar look on iOS: 

if you look at the .nuspec file for the Telerik.UI.for.Xamarin.Documents.Flow package there is an entry in the 

<framework> assemblies element;

<frameworkAssembly assemblyName=”WindowsBase” targetFramework=””/ >

This is what causes NuGet to drag the WindowsBase assembly in.

 we cannot build the iOS project - we get the following error.

The type 'NotifyCollectionChangedAction' exists in both 'System, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' and 'WindowsBase, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'

We are not referencing the WindowsBase assembly directly, but on analyzing the Nuget dependencies we found the following dependency chain;

Telerik.UI.for.Xamarin (2020.3.1106.1) -> Telerik.UI.for.Xamarin.Documents.Flow (2020.3.1019) -> WindowsBase (Framework Assembly)

 it seems that WindowsBase (and PresentationCore which is also included) are not intended for Xamarin iOS or Android applications.

The pdf content is not visualized properly on UWP and iOS when the file is loaded from a stream. 

Also if you try to load PDF twice on the same PDF Viewer, an exception is raised.

Introducing a TabItem.IsTabVisible property would be useful. 

Currently, if you want to hide a tab, you need to remove it from the TabView.Items collection and cache it in a backing collection.

Then, to re-show the tab, remove it from the cache and add it back to the TabItems (preferably at the same index if you've also cached it's position).

Already available for MultiDayView