How to: Make Series Labels Display Custom Information

using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ... 

private void chartControl1_CustomDrawSeriesPoint(object sender, 
CustomDrawSeriesPointEventArgs e) {
    if(e.SeriesPoint.Values[0] > 1) {
        e.LabelText = "Critical value";
    }
}

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ... 

Private Sub chartControl1_CustomDrawSeriesPoint(ByVal sender As Object, _ 
ByVal e As CustomDrawSeriesPointEventArgs) Handles chartControl1.CustomDrawSeriesPoint
    If e.SeriesPoint.Values(0) > 1 Then 
        e.LabelText = "Critical value" 
    End If 
End Sub