Hello!
I am sorry for a delay with response.
I use the RadControls v.2011.1.11.427.
Let's look at the following simple code:
using System.Windows.Forms;
using Telerik.Charting;
using Telerik.WinControls.UI;
namespace ChartTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
radChart1.Series.Clear();
ChartSeries s1 = new ChartSeries("Bars", ChartSeriesType.Bar);
s1.Appearance.ShowLabels = false;
radChart1.Series.Add(s1);
ChartSeries s2 = new ChartSeries("Line", ChartSeriesType.Line);
s2.Appearance.PointMark.Visible = true;
s2.Appearance.ShowLabels = false;
radChart1.Series.Add(s2);
double[] values = new double[] { 6, 8, 10, 8, 12 };
foreach (double v in values)
{
ChartSeriesItem item1 = new ChartSeriesItem(v);
item1.ActiveRegion.Tooltip = "Bars: " + item1.YValue.ToString();
s1.Items.Add(item1);
ChartSeriesItem item2 = new ChartSeriesItem(v / 2);
item2.ActiveRegion.Tooltip = "Line: " + item2.YValue.ToString();
s2.Items.Add(item2);
}
radChart1.Refresh();
}
}
}
The Bars series is added before the Line one. This allows to show the line in front of bars. But the tooltip of the Bars series override the tooltip of the Line one. See attached img1.jpg.
If I modify the code and add the Line series before the Bars one, the line is drawn behind the bars but the tooltip of the Line series is presented.
See attached img2.jpg.
It seems that the lookup order of the Active Regions should be reversed.
Thank you.