Last Updated: 28 Aug 2019 07:43 by ADMIN

If we have a ListView with a CheckBox inside the ItemTemplate and the whole ListView is placed in a Popup control, following the next steps:

1. Open the popup

2. Check and uncheck the CheckBox control in any of the items.

3. Click into the popup and then outside to close it.

NullReferenceException is raised on iOS.

Last Updated: 19 Aug 2019 09:58 by ADMIN
When display is on high resolution screen (MS surface book screen 3000*2000 with 200% scale) the DataGrid is not resized correctly.  See attachments. 
Last Updated: 12 Aug 2019 12:10 by ADMIN
As an effect of this, characters, which are not contained in the StandardEncoding names, e.g. umlauts, are measured with incorrect glyph widths. This leads to incorrect glyph positioning in RadPdfViewer.
Last Updated: 04 Nov 2019 15:25 by ADMIN
Java.Lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

For example change the IsPullToRefreshEnabled state on button click, when button is pressed several times, exception is throw.
Last Updated: 07 Aug 2019 14:40 by ADMIN
Applying custom filter to the datagrid and removing column at the same time disables the horizontal scrollbar - in scenario when the content of the column is bigger than the screen size.
Last Updated: 07 Aug 2019 11:03 by ADMIN


I'm using a popup and If the device is rotated when the pop-up is open, the UI gets disorted and gets a white space on sides or becomes uneven.

Please see the attached screenshots and below code to replicate the issue. Not sure about this issue occurring on android tablets.


<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns=""

            <RowDefinition Height="*"></RowDefinition>
        <Button HorizontalOptions="Center" Grid.Row="0"
        Text="Click here to rate" 
                <telerikPrimitives:RadPopup x:Name="popup"
                    <telerikPrimitives:RadBorder CornerRadius="8" 
                        <Grid Padding="20">
                                <RowDefinition Height="30" />
                                <RowDefinition Height="20" />
                                <RowDefinition Height="40" />
                            <Label Text="Please rate your experience" />
                            <telerikInput:RadShapeRating Grid.Row="1" />
                            <Button Grid.Row="2"
                            Clicked="Button_Clicked" />




using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;

namespace ListViewRefresh
    public partial class MainPage : ContentPage
        public MainPage()

        private void BtnTest_Clicked(object sender, EventArgs e)
            popup.IsOpen = true;

        private void Button_Clicked(object sender, EventArgs e)
            popup.IsOpen = false;

Last Updated: 30 Jul 2019 12:23 by ADMIN
If Calendar TitleCellStyle and DisplayDate are set, control shows the title as current month ..not the month of the display date.
Last Updated: 23 Jul 2019 08:06 by ADMIN
Created by: Thomas
Comments: 0
Category: Calendar & Scheduling
Type: Bug Report
The visual representation of an appointment is wrong when DayViewSettings.StartTime is set so that the appointment is initially visible
Last Updated: 22 Jul 2019 12:29 by ADMIN
When using DataTemplates on the ListView for Android, items are constantly redrawn when data shown on the template is updated, this is obvious to the user as it flashes and doesn't look great. Note that the native ListView does not do this.
Last Updated: 15 Jul 2019 08:38 by ADMIN
When you set custom stroke to ScatterLineSeries, the colors in the RadLegend are not updated.
Last Updated: 05 Jul 2019 09:30 by ADMIN
When the control lost focus and tokens almost fill all the space, the ShowMoreTemplate causes flickering.
Last Updated: 05 Jul 2019 07:58 by ADMIN
If the TimelineInterval property of the DayViewSettings is set to 1 hour, and the DayEndTime is, for example, "18.30", the last 30 minutes are not visualized in the Calendar View.
Last Updated: 16 Jul 2019 09:51 by ADMIN

If you have a Chart with BarSeries and TooltipBehavior defined, the tooltip of each bar is shown only when the user taps in the area around the tip of the bar.

The expected behavior is the tooltip to be displayed when clicking anywhere on the bar.

Last Updated: 03 Jul 2019 11:17 by ADMIN
When you use a DataForm with a GridLayout and set ColumnSpan property of the DisplayOptions for two columns in the same row, only the second column is shown on the screen on Android.
Last Updated: 02 Jul 2019 10:42 by ADMIN
While changing the orientation on mobile device to portrait or landscape, the columns' size is not calculated properly and the columns overlap on one another.
Last Updated: 17 Jul 2019 10:01 by ADMIN
when the RadCalendar is hosted inside a ScrollView, users cannot navigate to other month using the swipe gesture
Last Updated: 26 Jun 2019 11:50 by ADMIN
If a RadDataGrid is hosted inside a Popup a layout cycle is caused and the datagrid is not visualized.
Last Updated: 17 Jun 2019 08:37 by ADMIN
When RadCalendar is used in Xamarin.Forms Shell project, the vertical scrolling is not possible.
Last Updated: 14 Jun 2019 14:17 by ADMIN
Created by: Safan
Comments: 0
Category: TreeView
Type: Bug Report
When you have longer text shown in TreeView items and it is wrapped in 2 or 3 rows, the text is clipped incorrectly.
Last Updated: 12 Jun 2019 12:55 by ADMIN
Created by: Safan
Comments: 0
Category: ListView
Type: Bug Report
When the ListView has more items, it could be vertically scrolled, however, there is no UI for vertical scrollbar on Android.  The same can be observed with RadTreeView control.