ItemClick To Select LineSeries Data Point

[John]

Are there any examples for how to use the ItemClick event to select individual data points on a LineSeries?

[Rahul]

Hi John,

            This is my sample code for selecting values from chart Data Points

radChart.DefaultView.ChartArea.ItemClick += new EventHandler<ChartItemClickEventArgs>(ChartArea_ItemClick);

void ChartArea_ItemClick(object sender, ChartItemClickEventArgs e)
        {
            int diseaseID = Convert.ToInt32(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).DiseaseId);
            DiseaseIDGlobal = diseaseID;
            int isPrograms = 1;
            string measureRange = e.DataPoint.LegendLabel.ToString();
            switch (e.DataPoint.LegendLabel.ToString())
            {
                case "Good":
                    txtDiseaseDrillDown.Text = "[Disease Name- " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).DiseaseFullName) + "]   -   [Measure  -  " + e.DataPoint.LegendLabel.ToString() + "]  -  [# of Pts : " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).Good) + "]";
                    break;
                case "Fair":
                    txtDiseaseDrillDown.Text = "[Disease Name- " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).DiseaseFullName) + "]   -   [Measure  -  " + e.DataPoint.LegendLabel.ToString() + "  -  [# of Pts : " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).Fair) + "]";
                    break;
                case "Poor":
                    txtDiseaseDrillDown.Text = "[Disease Name- " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).DiseaseFullName) + "]   -   [Measure  -  " + e.DataPoint.LegendLabel.ToString() + "]  -  [# of Pts : " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).Poor) + "]";
                    break;
                case "Undefined":
                    txtDiseaseDrillDown.Text = "[Disease Name- " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).DiseaseFullName) + "]   -   [Measure  -  " + e.DataPoint.LegendLabel.ToString() + "]  -  [# of Pts : " + Convert.ToString(((AnalyticsReports.ReportServiceReference.CareProviderDisease)(e.DataPoint.DataItem)).UnDefined) + "]";
                    break;
            }
}

Hope it will help you.

Regards
Rahul

[Tsvetie]

Hello John,

For additional details and code sample, please refer to this blog post. The solution that it describes is actually very similar to the one that Rahul suggested.

Kind regards,
Tsvetie
the Telerik team

[John]

This is a fantastic solution. Thank you so much for finding this post for me! It absolutely works like a charm.