关键代码：

        /// <summary>        /// 创建Drill-Down样式的Title        /// </summary>        /// <param name="chart">ChartControl</param>        /// <param name="title">title文字</param>        /// <param name="visible">是否可见</param>        public static void AddDrillDownTitle(this ChartControl chart, string title, bool visible)        {            ChartTitle _chartTitle = new ChartTitle();            _chartTitle.Alignment = StringAlignment.Near;            _chartTitle.Antialiasing = false;            _chartTitle.Font = new Font("Tahoma", 10F, FontStyle.Underline);            _chartTitle.Indent = 20;            _chartTitle.Text = title;            _chartTitle.TextColor = Color.RoyalBlue;            _chartTitle.Visible = false;            chart.Titles.Add(_chartTitle);        }

运行效果：

希望有所帮助！谢谢！

[DevExpress]ChartControl 创建Drill-Down样式的Title