Under Review
Last Updated: 05 Aug 2020 08:23 by ADMIN



I receive often a NullReferenceException in ListViewGroupHeader ArrangeOverride method.

The error happens only in UWP.

Unfortunately, I cannot create a project to reproduce the error.


Best regards,


Last Updated: 11 Aug 2020 08:47 by ADMIN
When you place a Label with TextType set to "Html" inside ListView TemplatedCell, the ListVIew renders only the items currently in the viewport - if you scroll down, the listview is empty. 
Last Updated: 10 Jul 2020 08:31 by ADMIN
If you try to set/bind Zoom property of the Chart, the specified Zoom level is not taken into account
Last Updated: 03 Jun 2020 11:43 by ADMIN
If RadListView has Automatic LoadOnDemand enabled, and at some point when a LoadOnDemand operation is initiated ( user scrolls up to load more items), but the result is empty collection, the loading indicator is not hidden and further loading on demand is not possible.
Last Updated: 03 Jun 2020 05:55 by ADMIN
In cases ItemTemplate is defined in a way that items can have different height and LoadOnDemand is enabled, the newly loaded items sometimes are not rendered correctly ( their height is messed up).
Last Updated: 26 May 2020 15:00 by ADMIN

when a new ObservableCollection is assigned to the listview's ItemsSource during load on demand, there is an inconsistency in the scrolling.
- On Android the listview is scrolled to the top immediately and showing items at the top of the listview.

-On iOS and UWP, the listview position is not changed.

Last Updated: 15 Apr 2020 12:27 by ADMIN
When the SwipeOffset property is set at a later stage, the cell will be moved beyond the offset. 
Last Updated: 01 Apr 2020 14:00 by ADMIN
We are experiencing a hard crash when updating a collection that is the source for a RadListView.   This appears to only occur in Android 10 on Samsung device with Bixby Button enabled.   
Last Updated: 13 May 2020 13:13 by ADMIN
Release R2 2020

ListViewLoadOnDemandCollection method is not triggering in iOS automatically when there is a need to display the items on the screen. We have to manually scroll the list view then the ListViewLoadOnDemandCollection triggers and give further data to show. 

Things are working fine on Android platform.

Last Updated: 21 Jan 2020 07:39 by ADMIN
I have a listview with item templates in a modal popup but it is not visible on iOS simulator. On Android device it is OK.
Last Updated: 01 Nov 2019 11:47 by ADMIN
Created by: Mayank
Comments: 0
Category: ListView
Type: Bug Report

Follow this tutorial https://docs.telerik.com/devtools/xamarin/controls/listview/listview-features-load-on-demand#loading-mode-with-collection 

It works on Android and iOS, but on UWP it is defaulting to Explicit mode and clicking the load button crashes the app.

Last Updated: 25 Oct 2019 11:31 by ADMIN

When RadListView is setup to load its items on demand and the LayoutDefinition is GridLayout with SpanCount set to 2 or more, the Footer Template does not take all the width, it expands only to the Width of the first column.

Last Updated: 21 Oct 2019 15:18 by ADMIN

The bug can be reproduced on iOS 13 only. It is not reproducible on earlier versions of iOS. Run the attached project on iOS 13 device or Simulator to reproduce it.

Sometimes when focusing an entry and the onscreen keyboard shows up, the ListView is not scrolled correctly, so the entry is overlapped by the keyboard. The ListView layout appears messed up after that and the scrolling does not behave correctly.

Last Updated: 15 Oct 2019 08:43 by ADMIN
Cell height is not being adjusted to show all the content. the text overflow and it overlap the cell below. It seems that dynamic size is not respected.
Last Updated: 13 May 2020 13:14 by ADMIN
Release R2 2020
With Automatic LoadOnDemand, once all items are loaded and IsLoadOnDemandEnabled is set to false, when I scroll till the end the loading indicator keeps flickering on knowing that no more items are called.
Last Updated: 08 Oct 2019 11:05 by ADMIN
if the swipe content of the cells are buttons, dragging the buttons up and down will keep the swiped cells in the same position of the screen, creating unexpected animations and showing the entire swipe content of the cell.
Last Updated: 08 Oct 2019 10:45 by ADMIN
When swiping a cell, the swipe content of the cell will be shown if the swipe threshold is reached.  On iOS, the swipe content of another cell can be shown immediately by swiping another cell (which is an expected behaviour).  However on Android, when the user swipes another cell, the swipe content of the other cell isn't shown (while the swipe content of the first cell becomes hidden).  The user has to swipe the other cell again to show the swipe content.
Last Updated: 07 Oct 2019 10:08 by ADMIN

Activating the ItemHold event of an item in a list view requires holding down an item for a while.  On a physical/virtual Android device and a virtual iOS device, this can be done by holding down the mouse/finger lightly on an item for a short period of time.  However, on a physical iOS device (I am using a physical iPhone 6s to test this), holding down the item lightly with my finger won't activate the ItemHold event, and I have to hold the item really hard on the screen in order to activate it (similar to using 3D Touch / Force Touch, and I cannot reliably activate the ItemHold event possibly because my force is sometimes not hard enough).  I noticed this behaviour on the physical iOS device since the ItemHold event got implemented in early 2018.

I created a simple application to demonstrate the issue.  The app displays an alert when the user taps/holds an item in the list view.  On a physical iOS device, holding down an item in the list view requires the user to press the item very hard on the screen.


Last Updated: 04 Oct 2019 14:46 by ADMIN
Release 2019.3.1004 (R3 2019 minor release)
GroupHeaderTemplate has a default gray background applied and setting Transparent does not take any effect.
Last Updated: 04 Oct 2019 14:45 by ADMIN
Release 2019.3.1004 (R3 2019 minor release)
When any control (Frame, for example) with applied Margin is placed inside GroupHeaderTemplate of the ListView, the Margin value is not respected on iOS.
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