/// <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); }