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Chartview Trackball text format

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ChartView

This is a migrated thread and some comments may be shown as answers.

1 Answer, 1 is accepted

answered on 10 Sep 2013, 07:42 AM

Hello Frédéric,

Thank you for contacting us.

I have logged this in our Public Issue Tracking System. You can find it at this address - http://www.telerik.com/support/pits.aspx#/public/winforms/15705.

As a temporary workaround, you can use this class:

public class MyTrackBallController : ChartTrackballController

{

protected override string GetTrackballText(List<DataPointInfo> points)

{

StringBuilder result = new StringBuilder("<html>");

SortedDictionary<Telerik.WinControls.UI.ChartSeries, List<DataPoint>> visiblePoints

= new SortedDictionary<Telerik.WinControls.UI.ChartSeries, List<DataPoint>>(new ChartSeriesComparer());

foreach (DataPointInfo pointInfo in points)

{

if (visiblePoints.ContainsKey(pointInfo.Series))

{

visiblePoints[pointInfo.Series].Add(pointInfo.DataPoint);

}

else

{

visiblePoints.Add(pointInfo.Series, new List<DataPoint>() { pointInfo.DataPoint });

}

int counter = 0;

foreach (Telerik.WinControls.UI.ChartSeries series in visiblePoints.Keys)

{

for (int i = 0; i < visiblePoints[series].Count; i++)

{

Color pointColor = this.GetColorForDataPoint(series, visiblePoints[series][i]);

string color = string.Format("{0},{1},{2},{3}", pointColor.A, pointColor.R, pointColor.G, pointColor.B);

result.AppendFormat("<color={0}>{1}", color, this.GetPointText(visiblePoints[series][i]));

if (i < visiblePoints[series].Count)

{

result.Append(" ");

}

counter++;

if (counter < visiblePoints.Keys.Count)

{

result.Append("\n");

}

result.Append("</html>");

return result.ToString();

}

class ChartSeriesComparer : IComparer<Telerik.WinControls.UI.ChartSeries>

{

public int Compare(Telerik.WinControls.UI.ChartSeries x, Telerik.WinControls.UI.ChartSeries y)

{

if (!(x is IndicatorBase) && y is IndicatorBase)

{

return -1;

}

else if (x is IndicatorBase && !(y is IndicatorBase))

{

return 1;

}

if (x.Equals(y))

{

return 0;

}

return 1;

}

Your Telerik Points were updated for the report.

I hope this will be of your help.

Regards,
George
Telerik

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