how to find Line Chart Data items Active Region

[kiran]

Hi Telerik Team,

I am unable to find line chart data items active region points.(X,Y) values.
i used the following code to find the active region.

ChartSeriesItemsCollection

items = radChart1.Series[1].Items;
for (int i = 0; i < items.Count; i++)
{
    MessageBox.Show(items[i].ActiveRegion.Region.GetLastPoint().X.ToString());
    MessageBox.Show(items[i].ActiveRegion.Region.GetLastPoint().Y.ToString());
}

Please help me out. i need these points X and Y values. Please share some sample application to get the active region points.

Any help is highly appreciated.

Regards,
Kiran

[Dwight]

Hi kiran,

The items' ActiveRegion usually occupies a wider area than a single point. The easiest way to obtain a point is to retrieve the bounds of the region (which is a rectangular area) and get the center point:

private List<Point> RetrieveSeriesPoints(ChartSeries series)
{
    if (series == null)
        return null;

    List<Point> itemPoints = new List<Point>();
    foreach (ChartSeriesItem item in series.Items)
    {
        RectangleF regionBounds = item.ActiveRegion.Region.GetBounds();
        Point position = new Point((int)(regionBounds.Left + regionBounds.Width / 2), (int)(regionBounds.Top + regionBounds.Height / 2));
        itemPoints.Add(position);
    }

    return itemPoints;
}

All the best,
Evtim
the Telerik team

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