Won't Fix
Last Updated: 26 May 2020 15:27 by Petar

" Collection was modified; enumeration operation may not execute.'" - The exception is observed when the CLR exceptions are enabled from Visual Studio. 

Edit:

The Ellapsed event handler of the Timer is executed in background thread but modifying chart data in a background thread is considered bad practice which is not supported by our component. This is the reason we are declining this bug report.

General solution is to schedule the data update to happen on the UI thread with Dispatcher. When in ViewModel, the following code can be used:

        private void OnTimerElapsed(object sender, ElapsedEventArgs e)
        {
            ViewModelBase.InvokeOnUIThread(() =>
            {
                for (int i = 0; i < Items.Count; i++)
                {
                    Items[i].X += (_random.NextDouble() - 0.5) * 0.1;
                    Items[i].Y += (_random.NextDouble() - 0.5) * 0.1;
                }
            });
        }
Unplanned
Last Updated: 26 May 2020 11:40 by ADMIN

It appears the ChartView is also affected by the same SharpDX issue that affected the RadWebCam when it is used over Remote Desktop. 

A simple test of any series will replicate the issue. If it is being used via Remote Desktop, the series will not render.

Unplanned
Last Updated: 26 May 2020 06:58 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
0
Allow setting OriginValue on the series in the RadPolarChart. Currently, the area series are fixed to OriginValue of 0.

The same feature is available in the RadCartesianChart series.
https://docs.telerik.com/devtools/wpf/controls/radchartview/features/originvalue
Unplanned
Last Updated: 05 Mar 2020 14:57 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
1
Currently, you can format the axis labels using the LabelFormat property. This allows the same format to display different label value for the different cultures when the UI culture is changed. 

Add support also for the Language framework property in this case. 
Completed
Last Updated: 07 Feb 2020 14:26 by ADMIN
Release LIB 2020.1.210 (2/10/2020)
The start point of the MoveAnimation(Top and Left) is not calculated correctly.
Completed
Last Updated: 17 Dec 2019 14:08 by ADMIN
Release LIB 2019.3.1223

The VisualStudio2019 ChartPalette (from Telerik.Windows.Controls.ChartView) throws the below exception when using the Telerik .NET Core assemblies. This does not occur when using the Telerik .NET Framework assemblies.


System.IO.IOException: 'Cannot locate resource 'visualization/palettes/resources/visualstudio2019.xml'.'
StackTrace:
   at MS.Internal.AppModel.ResourcePart.GetStreamCore(FileMode mode, FileAccess access)
   at System.IO.Packaging.PackagePart.GetStream(FileMode mode, FileAccess access)
   at MS.Internal.IO.Packaging.PackagePartExtensions.GetSeekableStream(PackagePart packPart, FileMode mode, FileAccess access)
   at MS.Internal.IO.Packaging.PackagePartExtensions.GetSeekableStream(PackagePart packPart)
   at System.Windows.Application.GetResourceStream(Uri uriResource)
   at Telerik.Windows.Controls.ChartView.ChartPalettes.LoadPalette(String fileName)
   at Telerik.Windows.Controls.ChartView.ChartPalettes.get_VisualStudio2019()

Unplanned
Last Updated: 11 Dec 2019 13:46 by ADMIN
Created by: aegir
Comments: 0
Category: ChartView
Type: Feature Request
3
Add support for drill-down functionality.
Unplanned
Last Updated: 08 Nov 2019 15:39 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
2

Add a mechanism that allows the chart to process only the data within the viewport. This should improve the memory footprint and the performance of the chart in scenarios with big number of data points.

Unplanned
Last Updated: 06 Nov 2019 09:10 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
1
Add ScatterRangeSeries visualization, similar to RangeSeries.
Completed
Last Updated: 10 Oct 2019 10:36 by ADMIN
Release LIB 2019.3.1007
ADMIN
Created by: Petar Marchev
Comments: 1
Category: ChartView
Type: Bug Report
2

					
			
Completed
Last Updated: 02 Oct 2019 08:48 by ADMIN
Release LIB 2019.3.1007

When you set the Palette property to a new instance of ChartPalette in XAML, a NullReferenceException is thrown. This happens when you click inside the chart control in the Visual Studio designer.

The exception reproduces only if the "Miscellaneous" category in the "Properties" pane of Visual Studio is expanded.

To work this around, set the Palette property in code:

C#:

public MainWindow()
{
    InitializeComponent();
    this.chart.Palette = (ChartPalette)this.Resources("cpBarChart");
}

VB.NET:
Sub New()
    InitializeComponent()
    Me.chart.Palette = DirectCast(Me.Resources("cpBarChart"), ChartPalette)
End Sub

 

 

Declined
Last Updated: 26 Sep 2019 13:19 by ADMIN
You can observe the difference between the ChartView and an Excel Chart with the same data in the attached pictures.
Unplanned
Last Updated: 09 Sep 2019 10:09 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
2
Implement a feature that allows you to start an animation when the values of a data point are changed. For example, if you change the value on the vertical axis from 5 to 10, a smooth animation updating the visual element should be started.
Completed
Last Updated: 23 Aug 2019 09:37 by ADMIN
Unplanned
Last Updated: 15 Aug 2019 06:22 by ADMIN
The stroke property of the PaletteEntry is not respected.
Unplanned
Last Updated: 16 May 2019 08:49 by ADMIN
Created by: Martin Ivanov
Comments: 0
Category: ChartView
Type: Feature Request
1
Currently, the PanZoomBar is not themed across the themes. Consider improving this by applying different colors to the Thumbs based on the applied theme.
Completed
Last Updated: 17 Apr 2019 10:09 by ADMIN
Release LIB 2019.1.415 (04/15/2019)
The ToolTip behavior respect how the series are added to the chart. Setting ZIndex property to reorder them will not be respected by the ToolTip.
Unplanned
Last Updated: 12 Mar 2019 14:39 by ADMIN
Completed
Last Updated: 21 Feb 2019 11:20 by ADMIN

When you change series datapoints and then play ChartRevealAnimation the following InvalidOperationException might occur:

 Cannot call the ClockController.SkipToFill method for a Clock that has a Duration or RepeatDuration of Forever, because this Clock will never reach its fill period.
=====
Workaround:
You can try calling PlayAnimation in Dispatcher:

  Dispatcher.BeginInvoke(new Action(() =>
            {
                this.LineSeries1.PlaySeriesAnimation();
            }));

Completed
Last Updated: 30 Jan 2019 15:16 by ADMIN
If you define the chart in a new window and open it from the app main window, and then close the window, the chart stays in memory. This is reproducible only in a data binding scenario - the ItemsSource of the chart series should be set to a ObservableCollection<T>. 

Additionally, the collection bound to the ItemsSource of the series should be still alive. For example, it can be defined in the view model of the main window that opens the window with the chart.

To resolve this you will need to set the ItemsSource of all chart series in the window to null.

Scheduled for:
The fix for this issue will be available with LIB (version 2019.1.204) scheduled for publishing on Monday, 4th February 2019.
1 2 3 4 5 6