RadChart max number of points

[andrea bellagamba]

It seems like the RadChart is not able to display more than 250 points. At that level it generates a "Layout cycle detected" error.
This occurs with your Q2 Sp1 and Q3 Sp1 releases.

Here is a simple example to generate the error, I would really appriciate your help:

public partial class Page : UserControl
    {
        //  the error is generated  for  maxNumberOfPoints >249     -------------------------------------------
        private int _maxNumberOfPoints = 249;

       
       public Page()
        {
            InitializeComponent();
            LoadData();
        }

        private void LoadData()
        {    
            DataSeries splineAreaSeries = this.GetDataSeries();

            splineAreaSeries.Definition = new SplineSeriesDefinition();
            splineAreaSeries.Definition.ShowItemLabels = false;
            splineAreaSeries.Definition.ShowItemToolTips = false;
            _chart.DefaultView.ChartArea.DataSeries.Add(splineAreaSeries);
        }

        public DataSeries GetDataSeries()
        {
            Random random = new Random();
            DataSeries serie = new DataSeries();

            for (int i = 0; i < _maxNumberOfPoints; i++)
            {
                DataPoint dataPoint = new DataPoint();
                dataPoint.YValue = random.Next(10, 1000);
                dataPoint.XValue = i;
                serie.Add(dataPoint);
            }
            return serie;
        }

and the XAML:

 <Grid x:Name="LayoutRoot">
        <Controls:RadChart x:Name="_chart"></Controls:RadChart>
    </Grid>


EXTRA INFO:
DLLs used Telerik.Windows.Controls, Telerik.Windows.Data. Telerik.Windows.Controls.Charting

the error does not occur with you version 2009.1.526.1020 of the DLLs
while it does occur with versions 2009.2.701.1020 and 2009.3.916.1030

thanks

[andrea bellagamba]

Please let me know if there is a coming fix for this, or a workaround, since y application cannot be deployed if this isn't fix

[Velin]

Hi andrea,

This issue has been already fixed. Our local tests did not confirm that this problem is present in the Q2 SP1 release of the control.

Please, prepare and send us a sample project(including the referenced Telerik dlls) which we could further examine and provide a solution.

Thanks.

Sincerely yours,
Velin
the Telerik team

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[andrea bellagamba]

HI velin, thanks for your replay, unfortunaltly i can confirm instead that the code that I posted produces the Layout Cycle error with Q2SP1 and with Q3sp1.

I will get a Support ticket so that I can post the entire project.

But as I wrote earlier:

DLLs used Telerik.Windows.Controls, Telerik.Windows.Data. Telerik.Windows.Controls.Charting

the error does not occur with you version 2009.1.526.1020 of the DLLs
while it does occur with versions 2009.2.701.1020 and 2009.3.916.1030

[andrea bellagamba]

I have submited  support ticket 249654 (as a different account), so please just answer that.
The ticket as a sample project attached reproducing the error

Thanks

[Ves]

Hi Andrea,

Thanks for the details. It is confirmed -- the issue exists and our developers will look into it. The workaround for the moment is to hide the pointmarks.

Best regards,
Ves
the Telerik team

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Watch a video on how to optimize your support resource searches and check out more tips on the blogs.