In Development
Last Updated: 29 Sep 2022 12:45 by ADMIN
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: 27 Sep 2022 05:17 by ADMIN

when we try to add a dynamic AutomationId in each item of the list (something like AutomationId="{Binding Id}"), the AutomationId is not provided to the elements we see in the appium inspector. 

Works with fixed values

Last Updated: 23 Sep 2022 16:43 by Robin

When adding swipe content, it block the button to be clicked when the items in the cell matches the swipe offset value, 

a. reduce the swipe offset.
b. place the minus button further to the left, so the button width to match the ListView swipe offset

Sample setup:

<telerikDataControls:RadListView x:Name="listView"
                                    SwipeOffset="90, 0, 0, 0"
                                    ItemsSource="{Binding Source}"
                    <Grid ColumnDefinitions="*,90">
                        <!--  >> changed second row to 90 pixels, which is swipe offset  -->
                            Text="{Binding Sender}"
                            TextColor="Black" />
                        <StackLayout Grid.Column="1" 
                                TextColor="Gray" />
                                Text="---" />

                        <ColumnDefinition Width="90" />
                    <ColumnDefinition Width="*" />
                                WidthRequest="90" />

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 Sep 2022 10:34 by Novak

When setting dropdown thickness, the dropdown width changes:

Last Updated: 14 Sep 2022 13:55 by ADMIN
Release R3 2022
After updating Xamarin.Forms to version, the WatermarkText doesn't show in RadEntry on Android anymore.
Last Updated: 14 Sep 2022 13:54 by ADMIN
Release R3 2022
When changing the device culture to culture that requires comma as decimal separator (for example, German) - pressing the comma key does not work. You must press period. When pressing period "." -> "," is entered.
Last Updated: 14 Sep 2022 13:54 by ADMIN
Release R3 2022

when using DayViewSettings and applying AppointmentTemplate, the template is not applied, the default one is applied. 

Workaround: apply AppointmentTemeplate to MultiDayViewSettings for UWP.

Last Updated: 05 Sep 2022 13:17 by ADMIN
Created by: Vardan
Comments: 5
Category: NumericInput
Type: Bug Report
I've attached a sample solution to demonstrate the issue. Try to run it.
When you run it you can see that it's not possible to see  value of numeric input until 
tapping on it  
Last Updated: 02 Sep 2022 08:17 by paul
1. Change the view from BarSeries to Pie Series
     => Observe the PieChart loads as expected
2. Change the selection back to "Bar Series"
     => Observe BarSeries continues to operate as expected
3. Change the selection from "Bar Series" to "Pie Series"
     => Observe the following exception

Java.Lang.NullPointerException: 'Attempt to read from field 'double com.telerik.widget.chart.visualization.pieChart.PieUpdateContext.radius' on a null object reference'

Remove the ShowLabels from Pie Series.
Last Updated: 30 Aug 2022 13:02 by Vladyslav
System.ObjectDisposedException:** 'Cannot access a disposed object.
Object name: 'Telerik.XamarinForms.DataControlsRenderer.Android.RadListViewDataSourceAdapter'.'

is thrown when navigating to another view using ListView SelectedItem and removing the view where the ListView is placed. 


Instead of removing the view, change the view visibility.

Last Updated: 30 Aug 2022 08:55 by Chris

When setting FontOptions (FontSize, FontAttributes) and TextColor to the control, they are not applied. For example setting a BackgroundColor works as expected. 

 <telerikRichTextEditor:RadRichTextEditor BackgroundColor="Black" 
                                                 FontSize="30" />

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: 18 Aug 2022 12:32 by Egor

When changing the device orientation to a landscape mode, the all-day timeline cell does not resize as expected. The all day text moves the the date cell.

Last Updated: 15 Aug 2022 14:00 by Ruchira
When typing text inside the editor with for example Times New Roman font family, then exporting the document to RTF and importing it to HTML, the font family does not apply. 
Last Updated: 12 Aug 2022 09:57 by Ruchira

1) We inserted one image in Rich Text Editor. Here the original size was 100%.
2) We resized the image, i.e. reduced the size to 50%, 30%, 10%, etc.
3) After reducing size we fetched the HTML through GetHTML() method.
4) We converted the HTML string into an RTF string.
5) Again converted RTF to HTML string.

6) Image size is not updated to 50/30/10%,  it has different width and height.

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: 11 Jul 2022 12:10 by ADMIN

appointments show wrong time in different time zones due to daylight time changes.

The issue can be reproduced in scenarios:

- For US time zone 14th of march: If I click an empty slot, I have a popup that tells the time that is clicked. I click on the 9 AM slot and it says I'm clicking on "10:00". This only happens on 3/14/2021

- For European countries time zone: on 28th or march 2021 when is the daylight saving time

Last Updated: 24 Jun 2022 10:40 by Martin

On Android when adding new item to the ListView which is RadExpander with RadListView inside it, and when removing and adding item with different length the cell is not measured correctly. 

On iOS the ListView cell are not automatically sized. one height for cell is used

On UWP when adding the second item the app crashes with "System.ArgumentException: An item with the same key has already been added. Key: SDKBrowser.Examples.ListViewControl.GettingStartedCategory.GettingStartedExample.Product\r\n   at System.ThrowHelper.ThrowAddingDuplicateWithKeyArgumentException(Object key)\r\n   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)\r\n   at Telerik.UI.Xaml.Controls.Data.ListView.Model.BaseLayoutStrategy.RecycleLocally()\r\n   at Telerik.UI.Xaml.Controls.Data.ListView.Model.BaseLayout"

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.


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