Unplanned
Last Updated: 23 Jan 2023 16:20 by John

I have a RadPieChart in my application. When removing the app from the backstack and service is running, then opening the app from the notification, the app crashes with: 

 

Java.Lang.IllegalStateException: ChildNode is already parented by a ChartElement instance.

 

 

Unplanned
Last Updated: 20 Jan 2023 16:05 by John
Created by: John
Comments: 0
Category: Chart
Type: Feature Request
1

Hi team,

Currently, I can only set LegendItemFontColor and LegendItemFontSize. I would like to be able to set LegendItemFontFamily

Thank you,

John

Unplanned
Last Updated: 20 Jan 2023 16:00 by John
Created by: John
Comments: 0
Category: Chart
Type: Feature Request
1

Hi Team,

I would like to be able to set different cap styles on the bars, like the RadGauge allows you to do on Indicators. For example, I want rounded corners.

Thank you,

John

Unplanned
Last Updated: 02 Jan 2023 09:44 by Sebastian

On some chart series like, bar, line, scatter line, etc, the y axis line is hidden. make it visible, as it is on Android and Windows. 

Current solution is to use the chart handler changed and set YAxis.Style.LineHidden to false.

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        InitializeComponent();

        this.chart.HandlerChanged += this.Chart_HandlerChanged;
    }

    private void Chart_HandlerChanged(object sender, EventArgs e)
    {
        this.UpdateChart();
    }

    private void UpdateChart()
    {
        var platformView = this.chart.Handler.PlatformView;
#if IOS || MACCATALYST
        var platformChart = (Telerik.Maui.Controls.Compatibility.ChartRenderer.iOS.TKExtendedChart)platformView;
platformChart.YAxis.Style.LineHidden = false;
#endif
    }
}

Unplanned
Last Updated: 29 Dec 2022 17:29 by Somesh

When adding a plot band annotation to the date time axis, it is not applied on MacCatalyst and iOS. In addition if using binding, an exception is thrown.  

System.ArgumentNullException: Value cannot be null.
Parameter name: minimum
  at TelerikUI.TKRange..ctor (Foundation.NSObject minimum, Foundation.NSObject maximum) 

 

It works on Android and WinUI

Unplanned
Last Updated: 21 Dec 2022 10:39 by Dustin
Created by: Angus
Comments: 1
Category: Chart
Type: Feature Request
1
I need to show multiple series in the graph controlled by some other switch / check box list that selects which series to show on the graph.
Unplanned
Last Updated: 08 Dec 2022 17:52 by Clint
Created by: Sebastian
Comments: 1
Category: Chart
Type: Feature Request
2
I would like to visualize a secondary vertical Axis for the series. 
Unplanned
Last Updated: 05 Dec 2022 15:23 by Clint
Created by: Clint
Comments: 0
Category: Chart
Type: Feature Request
1
Add a title for the horizontal and vertical axis.
Unplanned
Last Updated: 24 Nov 2022 11:33 by Clint
Created by: Clint
Comments: 0
Category: Chart
Type: Feature Request
1

Add an option to define chart title. 

 Currently we can achieve this by adding a label on the top/bottom of the chart.

Example:

<Grid RowDefinitions="Auto,*">
    <Label Grid.Row="0" Text="Chart title"/>
    <telerik:RadCartesianChart x:Name="chart" Grid.Row="1" AutomationId="chart">
        <telerik:RadCartesianChart.BindingContext>
            <local:ViewModel />
        </telerik:RadCartesianChart.BindingContext>
        <telerik:RadCartesianChart.HorizontalAxis>
            <telerik:CategoricalAxis />
        </telerik:RadCartesianChart.HorizontalAxis>
        <telerik:RadCartesianChart.VerticalAxis>
            <telerik:NumericalAxis />
        </telerik:RadCartesianChart.VerticalAxis>
        <telerik:RadCartesianChart.Series>
            <telerik:BarSeries CategoryBinding="Category"
                                ValueBinding="Value"
                                ItemsSource="{Binding Data}" />
        </telerik:RadCartesianChart.Series>
    </telerik:RadCartesianChart>
</Grid>

Unplanned
Last Updated: 07 Oct 2022 08:49 by Angus
Created by: Angus
Comments: 2
Category: Chart
Type: Feature Request
1

I would like to use line style instead of colour to distinguish between the different series on my chart as below. 

Is this possible?

From the docs it looks like we can only customise stroke colour and thickness. 

Thanks =)

Unplanned
Last Updated: 07 Oct 2022 08:47 by Angus
Created by: Angus
Comments: 1
Category: Chart
Type: Feature Request
1

 

Can the Legend be identical to the LineSeries, not only by colour, but also by style?

Unplanned
Last Updated: 05 Sep 2022 13:17 by Sergio
Created by: Sergio
Comments: 0
Category: Chart
Type: Feature Request
0

Can I customize the text inside the bar?

- Text Color, Position, FontSize, etc.

Unplanned
Last Updated: 24 Aug 2022 14:19 by Valliappan
Created by: Valliappan
Comments: 0
Category: Chart
Type: Feature Request
0
Currently the legend icon is displayed as square. Provide an option to change it to circle for example. 
Unplanned
Last Updated: 23 Aug 2022 15:01 by Hanoch
Created by: Hanoch
Comments: 0
Category: Chart
Type: Feature Request
1
I want to suit each line series tooltip border color to match the chart palette color
Completed
Last Updated: 13 Jul 2022 10:37 by ADMIN
Release Release 2.1.0
On iOS, when using the TrackBall behavior, if the graph is zoomed at all when trying to move side to side it scrolls the graph rather than moving the line/info box.
Completed
Last Updated: 13 Jul 2022 10:35 by ADMIN
Release Release 2.1.0
Trackball and Tooltip throw 

Android.Views.WindowManagerBadTokenException: 'Unable to add window -- token null is not valid; is your activity running?'

Exception
Completed
Last Updated: 13 Jul 2022 10:35 by ADMIN
Release Release 2.1.0

Series labels are not properly rotated with LabelFitMode set to "Rotate".

On iOS it seems the issue happens only on simulator, on iPhone device the labels are aligned (rotated) as expected.

Completed
Last Updated: 13 Jul 2022 10:34 by ADMIN
Release Release 2.1.0

Legend is not fully visualized, the square color is missing, only the text is displayed.
on iOS it seems the issue happens only on simulator, on iPhone device SE 2022 the legend is  fully displayed

Unplanned
Last Updated: 06 May 2022 08:20 by ADMIN
Created by: Tinus
Comments: 1
Category: Chart
Type: Feature Request
1

Hi Team,

Currently on Android, the Chart renderers do not setup the XValueBinding and YValueBinding correctly if the property name is a nested property. This results in an UnhandledException at runtime

You can reproduce the issue using .NET MAUI RC2 and Telerik UI for MAUI 0.8.0, with the following implementation:

  1. Create a File > New .NET MAUI RC2 project (VS 2022 Preview 5)
  2. Setup MainPage using the following code

XAML

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:telerikChart="clr-namespace:Telerik.XamarinForms.Chart;assembly=Telerik.Maui.Controls.Compatibility"
             x:Class="MauiApp1.MainPage">

    <telerikChart:RadCartesianChart MinimumHeightRequest="300">
        <telerikChart:RadCartesianChart.HorizontalAxis>
            <telerikChart:NumericalAxis LabelFitMode="MultiLine" />
        </telerikChart:RadCartesianChart.HorizontalAxis>
        <telerikChart:RadCartesianChart.VerticalAxis>
            <telerikChart:NumericalAxis />
        </telerikChart:RadCartesianChart.VerticalAxis>

        <telerikChart:RadCartesianChart.Series>
            <telerikChart:ScatterSplineSeries XValueBinding="NumericalData.XData" YValueBinding="NumericalData.YData" ItemsSource="{Binding Data1}" />
        </telerikChart:RadCartesianChart.Series>
    </telerikChart:RadCartesianChart>
</ContentPage>

Code-behind

namespace MauiApp1;

using System.Collections.ObjectModel;

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        InitializeComponent();
        Data1 = GetNumericData1();
        BindingContext = this;
    }
    
    public ObservableCollection<Item> Data1 { get; set; }
    
    public static ObservableCollection<Item> GetNumericData1()
    {
        var data = new ObservableCollection<Item>
        {
            new Item { NumericalData = new NumericalData { XData = 2, YData = 13 } },
            new Item { NumericalData = new NumericalData { XData = 19, YData = 31 } },
            new Item { NumericalData = new NumericalData { XData = 22, YData = 33 } },
            new Item { NumericalData = new NumericalData { XData = 28, YData = 35 } },
            new Item { NumericalData = new NumericalData { XData = 33, YData = 46 } },
            new Item { NumericalData = new NumericalData { XData = 38, YData = 34 } },
            new Item { NumericalData = new NumericalData { XData = 49, YData = 66 } },
            new Item { NumericalData = new NumericalData { XData = 55, YData = 24 } },
            new Item { NumericalData = new NumericalData { XData = 62, YData = 41 } },
        };
        return data;
    }
}

public class NumericalData
{
    public double XData { get; set; }
    public double YData { get; set; }
}

public class Item
{
    public NumericalData NumericalData { get; set; }
}

Thank you!

Martin