Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

How to: Determine what Scheduler Element Is Hovered by the Mouse Pointer

  • 2 minutes to read

The following code snippet shows how to use the SchedulerControl.CalcHitInfo method in the Scheduler.MouseMove event handler to obtain the hit information for the scheduler element over which the mouse pointer is hovering. The information on the element located under the mouse pointer is shown in the top panel.

DXScheduler_Examples_HitTest

private void SchedulerControl_MouseMove(object sender, MouseEventArgs e) {
    // Obtain hit information under the test point.
    Point position = e.GetPosition(schedulerControl1);
    ISchedulerHitInfo hitInfo = schedulerControl1.CalcHitInfo(position);
    if (hitInfo != null) {
        this.hitResultsHeader.Text = "Hit Test Results";
        StringBuilder builder = new StringBuilder();
        builder.AppendLine(Enum.GetName(typeof(SchedulerHitTestType), hitInfo.HitTestType));
        switch (hitInfo.HitTestType) {
            case SchedulerHitTestType.Appointment:
                AppointmentViewModel appViewModel = hitInfo.ViewModel as AppointmentViewModel;
                if (appViewModel != null) {
                    builder.AppendLine("Subject: " + appViewModel.Appointment.Subject);
                    builder.AppendLine("Start: " + appViewModel.Appointment.Start.ToString());
                    builder.AppendLine("End: " + appViewModel.Appointment.End.ToString());
                }
                break;
            case SchedulerHitTestType.Cell:
                builder.AppendLine("Interval: " + hitInfo.ViewModel.Interval.ToString());
                builder.AppendLine("Selected: " + hitInfo.ViewModel.IsSelected.ToString());
                break;
            case SchedulerHitTestType.Ruler:
               TimeRulerCellViewModel rulerViewModel = hitInfo.ViewModel as TimeRulerCellViewModel;
                if (rulerViewModel != null) {
                    builder.AppendLine("Time: " + rulerViewModel.Time.ToString());
                    builder.AppendLine("Time Scale: " + rulerViewModel.TimeScale.ToString());
                }
                break;
        }
        this.hitResultsText.Text = builder.ToString();
    }
    else {
        ClearResults();
    }
}