How to trigger the ChartRegionEvents in the WinForms Chart?

The ChartRegionMouseEventHandler is a crucial component used to handle mouse-related events in a WinForms Chart. These regions include Axis Labels, Chart Points, or any Custom Regions within the chart.

When a user interacts with these regions using the mouse, several mouse-related events can be triggered. Depending on the region of interaction, the following events may occur:

• ChartRegionClick Event
• ChartRegionMouseEnter Event
• ChartRegionMouseHover Event
• ChartRegionMouseMove Event
• ChartRegionMouseLeave Event
• ChartRegionMouseUp Event
• ChartRegionMouseDown Event

C#

// Add the ChartRegionMouseDown event
this.chartControl1.ChartRegionMouseDown += new Syncfusion.Windows.Forms.Chart.ChartRegionMouseEventHandler(this.chartControl1_ChartRegionMouseDown);

// Specifies Action to the ChartRegionMouseDown Event
private void chartControl1_ChartRegionMouseDown(object sender, Syncfusion.Windows.Forms.Chart.ChartRegionMouseEventArgs e)
{
    if (e.Region.SeriesIndex == 0)
    {
        OutputText.Text = (String.Format("MouseDown Series 1 Bar {0} Point : {1}", e.Region.PointIndex, e.Point));
    }
}

VB

'Add the ChartRegionMouseDown Event
AddHandler columnChart.ChartRegionMouseDown, AddressOf chartControl1_ChartRegionMouseDown

'Specifies Action to the ChartRegionMouseDown Event
Private Sub chartControl1_ChartRegionMouseDown(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Chart.ChartRegionMouseEventArgs)

If e.Region.SeriesIndex = 0 Then

outputText.Text = (String.Format("MouseDown Series 1 Bar {0} Point : {1}", e.Region.PointIndex, e.Point))

End If

End Sub