How to: Implement Custom Hot-Tracking and Selection
- 2 minutes to read
This example demonstrates how to implement custom hot-tracking and selection of the chart’s elements at runtime.
Note
To enable runtime selection, the Chart
If you want to change the default hot-tracking and selection, you should handle the ChartControl.ObjectHotTracked and ChartControl.ObjectSelected events, implement your custom hot-tracking and selection approaches and set the Cancel property to true.
For example, the code below disables selection and hot-tracking of a chart’s diagram.
using DevExpress.XtraCharts;
// ...
private void chartControl1_ObjectHotTracked(object sender, HotTrackEventArgs e) {
// Prevent the chart's diagram from being hot-tracked.
if (e.Object is Diagram)
e.Cancel = true;
}
private void chartControl1_ObjectSelected(object sender, HotTrackEventArgs e) {
// Prevent the chart's Diagram from being selected.
if (e.Object is Diagram)
e.Cancel = true;
}
See Also