In Development
Last Updated: 13 Mar 2024 15:42 by ADMIN
Created by: Lance | Manager Technical Support
Comments: 0
Category: UI for Xamarin
Type: Bug Report
When the Telerik Xamarin toolbox is in a partial-height tab (i.e. half the height), there isn't a scrollbar to see the off-screen controls.

Make the toolbox full height of the tab to see all the controls. Here's a video demonstrating 
Last Updated: 01 Dec 2023 20:59 by ADMIN


I'd been testing the trial version of the Telerik chart control for Xamarin in an Android app. Because it was working well, I'd purchased a license yesterday. And, I replaced the NuGet trial package with the license package. So far, so good.

However, now, when I try to build the project, it fails. (I've tried building both the Release and Debug version.)

The errors I see are below:

Severity Code Description Project File Line Suppression State
Error failed linking references. Ble.Client.Android
Error resource style/MainTheme.Base (aka com.companyname.ble.client:style/MainTheme.Base) not found. Ble.Client.Android
ErrorNU1301       Failed to retrieve information about 'Xamarin.AndroidX.AppCompat' from remote source 'https://packagesource/FindPackagesById()?id='Xamarin.AndroidX.AppCompat'&semVerLevel=2.0.0'. Ble.Client.Android D:\2023_devwork\BLE_Xamarin\XamarinBleCodeBehind-main\XamarinBleCodeBehind-main\Ble.Client\Ble.Client.Android\Ble.Client.Android.csproj 1

Any thoughts as to what might have broken, and, what I need to do in order to resolve the issue? (In case it helps, I'm including a screen capture of the Visual Studio 2022 output window.)


--Donn Morse

Last Updated: 24 Nov 2023 07:23 by Carolin

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:


            <telerikGrid:DataGridColumnHeaderStyle x:Key="headerstyle"
                                           TextColor="Black" OptionsButtonMargin="0,0,20,0" 
        <telerikGrid:RadDataGrid ItemsSource="{Binding Items}" BackgroundColor="Red" AutoGenerateColumns="false">
                <telerikGrid:DataGridTextColumn PropertyName="Country" HeaderStyle="{StaticResource headerstyle}"/>
                <telerikGrid:DataGridTextColumn PropertyName="Capital" HeaderStyle="{StaticResource headerstyle}"/>





Last Updated: 05 Apr 2023 13:58 by JJ
Created by: Nicola
Comments: 1
Category: UI for Xamarin
Type: Feature Request
The ability to drag and drop items within the same TreeView as well as to another TreeView instance.
Last Updated: 27 Mar 2023 11:36 by ADMIN
Created by: Kiril Stanoev
Comments: 16
Category: UI for Xamarin
Type: Feature Request
Add a Map control to the product suite.
Last Updated: 15 Mar 2023 12:02 by ADMIN
Release R1 2023 SP1
Telerik.UI.for.Xamarin NuGet package is missing Telerik.UI.for.Xamarin.Documents.Fixed.FormatProviders.Image.Skia package reference.
Last Updated: 03 Mar 2023 14:07 by David
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. 
Last Updated: 03 Mar 2023 09:37 by Brandon

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. 

Last Updated: 30 Jan 2023 07:47 by ADMIN
Release 2022.3.1026
Created by: Giampaolo
Comments: 0
Category: UI for Xamarin
Type: Bug Report

Unable to deploy Xamarin app with Telerik Document Processing dlls when AOT is true in Release configuration.

An error with text like is displayed in Visual Studio:

XABLD7028: System.IO.FileNotFoundException: Could not find file '...\....Droid\obj\Release\120\aot\armeabi-v7a\'


Last Updated: 26 Dec 2022 06:24 by ADMIN
Created by: Francisco Manuel
Comments: 14
Category: UI for Xamarin
Type: Feature Request

Do you have plans to develop controls for the UNO platform?


There are other companies that have already stated that they are working on it, for example, 

Last Updated: 08 Nov 2022 15:21 by Vesselin
The value of DisplayedTextFontSize is not respected when DisplayedTextFont is set on iOS.
Last Updated: 23 Sep 2022 05:48 by ADMIN
Created by: Vidhi
Comments: 1
Category: UI for Xamarin
Type: Bug Report
For SelectionMode = Miultiple, we need SelectedItems property to be bound to the VM collection to get the selection items, however, when i am using the control, I am not able to find SelectedItems property for RadComboBox. Am i missing something?
Last Updated: 22 Aug 2022 20:58 by Brent

LongPress is called on element that is already disposed. 

ObjectDisposedException is thrown:

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



Xamarin Exception Stack: System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Xamarin.Forms.Platform.Android.Platform+DefaultRenderer'. at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable self) [0x00029] in <2e109281f9514c53b44688fd4549adb2>:0 at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeNonvirtualObjectMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x00000] in <2e109281f9514c53b44688fd4549adb2>:0 at Android.Views.View.get_Context () [0x0000a] in <9d68875f5dbd432db5314e1c0d96cb02>:0 at Telerik.XamarinForms.Common.NativeGestureRecognizer.ToDip (System.Single px) [0x00000] in <9f139977bc32402dabe4bb05ac247bb2>:0 at Telerik.XamarinForms.Common.GestureListener.OnLongPress (Android.Views.MotionEvent e) [0x0000c] in <9f139977bc32402dabe4bb05ac247bb2>:0 at Android.Views.GestureDetector+IOnGestureListenerInvoker.n_OnLongPress_Landroid_view_MotionEvent_ (System.IntPtr jnienv, System.IntPtr native__this, System.IntPtr native_e) [0x0000f] in <9d68875f5dbd432db5314e1c0d96cb02>:0 at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.102(intptr,intptr,intptr)

The issue occurs on the following device:

Android: 12
Manufacturer: samsung
Model: SM-G970U
Last Updated: 21 Jul 2022 13:19 by ADMIN
Release R1 2021 SP1

When building against XF5 and after migrating a project you can get the following error:-

Severity Code Description Project File Line Suppression State
Error failed linking file resources. App1.Android
Error '5dp' is incompatible with attribute verticalOffset (attr) float [weak]. App1.Android
Error '10dp' is incompatible with attribute horizontalOffset (attr) float [weak]. App1.Android

It appears to be a conflict between

<PackageReferenceInclude="Xamarin.Google.Android.Material"Version="" />

and Telerik assemblies.

If a dummy app is built with that Nuget it all works fine until the Nuget

<PackageReference Include="Telerik.UI.for.Xamarin" Version="2021.1.119.1" />

is added.

So you can have one or the other but not both.

Please see this GitHub thread where its discussed more and a sample app is posted.

(I am user Gmotagi in it)




Last Updated: 23 Jun 2022 21:03 by ADMIN
Created by: Nikolay Demirev
Comments: 2
Category: UI for Xamarin
Type: Feature Request
Barcode reader which can scan a barcode and input it in an entry.
Last Updated: 22 Jun 2022 11:41 by ADMIN
Release R2 2022 SP1

DataBindingComplete event of the DataGrid should be fired when the associated data (ItemsSource) has been successfully bound to the control or any data operation like Group, Sort or Filter is applied.  Currently the event handler is not called as expected.


Last Updated: 13 May 2022 07:22 by ADMIN
Created by: Jinfeng
Comments: 3
Category: UI for Xamarin
Type: Bug Report
RdBusyIndicator BusyContent data binding does not work. If a string constant is assigned to the     


                IsBusy="{Binding IsBusy}"
                IsVisible="{Binding IsBusy}"
                AnimationContentColor="{DynamicResource BrandPrimaryColor}">
                    <Label Text="{Binding BusyContent}" HorizontalOptions="Center"/>


RdBusyIndicator BusyContent data binding does not work for the above Label inside the "telerik:RadBusyIndicator.BusyContent". If a string constant is assigned to the Text(for example "Loading..."), then it works perfectly.

The view model 100% has the property "BusyContent" with a value. By the way, the IsBusy and IsVisible data binding work fine.   

Last Updated: 12 May 2022 05:47 by ADMIN
when the item is too long and it spans 2 rows in the result view. When user selects this long item and the drop-down is closed, the selected item text is right-aligned in the control. 

Last Updated: 11 May 2022 14:56 by ADMIN
Release R2 2022
Created by: Anbu
Comments: 0
Category: UI for Xamarin
Type: Feature Request
Add linear progress bar which indicates the progress of a task.
Last Updated: 31 Mar 2022 13:59 by ADMIN
Release Release 2021.1.331 (R1 2022 minor release)
With the Telerik UI for Xamarin release 2022.1.222.1 SkiaSharp version was updated to 2.80.3 
but inside the Telerik.UI.for.Xamarin.SkiaSharp NuGet package the SkiaSharp.Views.Forms version is not updated. The version is 1.68.0
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