Open a WebPage in Response to a Click

To open a web page in response to a click of an item, you can use the ActiveRegion Url property and the RadChart.Click event, whose ChartClickEventArgs contains the item clicked:

void radChart1_Click(object sender, Telerik.Charting.ChartClickEventArgs args)
{
    if (args.SeriesItem.Index == 2)
    {
        Process.Start(args.SeriesItem.ActiveRegion.Url);
    }
}

Private Sub radChart1_Click(ByVal sender As Object, ByVal args As Telerik.Charting.ChartClickEventArgs)
    If args.SeriesItem.Index = 2 Then
        Process.Start(args.SeriesItem.ActiveRegion.Url)
    End If
End Sub