Unplanned
Last Updated:
29 Mar 2016 11:04
by ADMIN
ADMIN
Dess | Tech Support Engineer, Principal
Created on:
10 Mar 2016 07:52
Category:
ChartView
Type:
Bug Report
FIX. RadChartView - ChartTrackballController shows the labels in a random order
To reproduce:
BarSeries barSeries = new BarSeries("Performance", "RepresentativeName");
barSeries.Name = "Q1";
barSeries.CombineMode = ChartSeriesCombineMode.Stack;
barSeries.DataPoints.Add(new CategoricalDataPoint(177, "Harley"));
barSeries.DataPoints.Add(new CategoricalDataPoint(128, "White"));
barSeries.DataPoints.Add(new CategoricalDataPoint(143, "Smith"));
barSeries.DataPoints.Add(new CategoricalDataPoint(111, "Jones"));
barSeries.DataPoints.Add(new CategoricalDataPoint(118, "Marshall"));
this.radChartView1.Series.Add(barSeries);
BarSeries barSeries2 = new BarSeries("Performance", "RepresentativeName");
barSeries2.Name = "Q2";
barSeries2.CombineMode = ChartSeriesCombineMode.Stack;
barSeries2.DataPoints.Add(new CategoricalDataPoint(153, "Harley"));
barSeries2.DataPoints.Add(new CategoricalDataPoint(141, "White"));
barSeries2.DataPoints.Add(new CategoricalDataPoint(130, "Smith"));
barSeries2.DataPoints.Add(new CategoricalDataPoint(88, "Jones"));
barSeries2.DataPoints.Add(new CategoricalDataPoint(109, "Marshall"));
this.radChartView1.Series.Add(barSeries2);
BarSeries barSeries3 = new BarSeries("Performance", "RepresentativeName");
barSeries3.Name = "Q3";
barSeries3.CombineMode = ChartSeriesCombineMode.Stack;
barSeries3.DataPoints.Add(new CategoricalDataPoint(153, "Harley"));
barSeries3.DataPoints.Add(new CategoricalDataPoint(141, "White"));
barSeries3.DataPoints.Add(new CategoricalDataPoint(130, "Smith"));
barSeries3.DataPoints.Add(new CategoricalDataPoint(88, "Jones"));
barSeries3.DataPoints.Add(new CategoricalDataPoint(109, "Marshall"));
this.radChartView1.Series.Add(barSeries3);
this.radChartView1.ShowTrackBall = true;
Note: the trackball labels should be displayed in the order the series are displayed in the chart view.
Workaround:
private void ChartTrackballController_TextNeeded(object sender, TextNeededEventArgs e)
{
string pattern = " \\d+.?\\d* ";
StringBuilder sb = new StringBuilder("<html>");
List<DataPointInfo> points = new List<DataPointInfo>();
foreach (DataPointInfo dp in e.Points)
{
points.Add(dp);
}
points.Reverse();
foreach (DataPointInfo dp in points)
{
Color pointColor = this.GetColorForDataPoint(dp.Series, dp.DataPoint);
string color = string.Format("{0},{1},{2},{3}", pointColor.A, pointColor.R, pointColor.G, pointColor.B);
sb.AppendFormat("<color={0}>{1}", color, string.Format("{0} {1}", dp.Series.Name, ((CategoricalDataPoint)dp.DataPoint).Value));
sb.AppendLine();
}
e.Text = sb.ToString();
}
protected virtual Color GetColorForDataPoint(ChartSeries series, DataPoint point)
{
if (series is IndicatorBase)
{
return series.BorderColor;
}
foreach (UIChartElement element in series.Children)
{
DataPointElement pointElement = element as DataPointElement;
if (pointElement != null)
{
if (pointElement.DataPoint.Equals(point))
{
if (pointElement.BackColor.A > 0)
{
return pointElement.BackColor;
}
else
{
return pointElement.BorderColor;
}
}
}
}
return Color.Black;
}
Attached Files:
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