记 Devexpress ChartControl Y轴数值加文字，柱体数值加文字，鼠标悬浮提示信息自定义、点击Point删除事件

1.Y轴数据加上文字

2.柱体数值加上文字

3.鼠标悬浮提示内容自定义
设置chartcontrol的CustomDrawCrosshair事件

	private void chartControl1_CustomDrawCrosshair(object sender, CustomDrawCrosshairEventArgs e)
    {
        foreach (CrosshairElement element in e.CrosshairElements)
        {
            Series series = element.Series;
            SeriesPoint point = element.SeriesPoint;
            element.LabelElement.Text = series.Name + ":" + point.Values[0].ToString() + "万";//想要显示的内容
        }
    }

4.Legend设置用户可勾选切换Series的显示与隐藏
设计界面左侧菜单>Legend>右侧面板User Check Boxes 打勾

5.点击Point删除
设置chartcontrol MouseClick事件

	private void chartControl1_MouseClick(object sender, MouseEventArgs e)
    {
			ChartHitInfo info = chartControl1.CalcHitInfo(e.X, e.Y);
        	if (info.SeriesPoint != null)
        	{
            	chartControl1.Series[0].Points.Remove(info.SeriesPoint);//柱1
            	chartControl1.Series[1].Points.Remove(info.SeriesPoint);//柱2
            	chartControl1.Series[2].Points.Remove(info.SeriesPoint);//折1
        	}
     }