/// <summary>/// 画图控件数据源/// </summary>public class ChartDatasource{/// <summary>/// 当前位置高度/// </summary>public double Altitude { get; set; }/// <summary>/// 距起点距离/// </summary>public double Length { get; set; }/// <summary>/// 坡度/// </summary>public double Slope { get; set; }}

            this.chartControl_Alt.Series[0].ArgumentDataMember = "Length";this.chartControl_Alt.Series[0].ValueDataMembers[0] = "Altitude";this.chartControl_Slope.Series[0].ArgumentDataMember = "Length";this.chartControl_Slope.Series[0].ValueDataMembers[0] = "Slope";

              var sourcelist=new List<ChartDatasource>();sourcelist.Add(new ChartDatasource{Altitude=33,Length=0,Slope=4});sourcelist.Add(new ChartDatasource{Altitude=33,Length=0,Slope=4});sourcelist.Add(new ChartDatasource{Altitude=33,Length=0,Slope=4});sourcelist.Add(new ChartDatasource{Altitude=33,Length=0,Slope=4});.....................chartControl_Alt.DataSource = sourcelist;chartControl_Slope.DataSource = sourcelist;

/// <summary>/// 画图控件数据源/// </summary>public class RChartDataSource{/// <summary>/// 点号/// </summary>public string ID{ get; set; }/// <summary>/// 源高程值/// </summary>public double HeightY{ get; set; }/// <summary>/// 对比高程值/// </summary>public double HeightD{get;set;}}

            this.chartControl1.Series[0].ValueDataMembers[0] = "HeightY";this.chartControl1.Series[0].ArgumentDataMember = "ID";this.chartControl1.Series[1].ValueDataMembers[0] = "HeightD";this.chartControl1.Series[1].ArgumentDataMember = "ID";

            var sourcelist=new List<RChartDataSource>();sourcelist.Add(new RChartDataSource{ID=1，HeightY=35，HeightD=36});sourcelist.Add(new RChartDataSource{ID=2，HeightY=35，HeightD=36});sourcelist.Add(new RChartDataSource{ID=3，HeightY=35，HeightD=36});sourcelist.Add(new RChartDataSource{ID=4，HeightY=35，HeightD=36});sourcelist.Add(new RChartDataSource{ID=5，HeightY=35，HeightD=36});.....................chartControl1.DataSource = sourcelist;

sourcelist.Add(new (new RChartDataSource{ID=，HeightY=，HeightD=});
chartcontrol.DataSource=null;
chartcontrol.DataSource=sourcelist;

        double Heng = 0;double Zong = 0;private void chartControl_Alt_CustomDrawCrosshair(object sender, CustomDrawCrosshairEventArgs e){if (chartControl_Alt.DataSource != null&&IsClick){var element = e.CrosshairElements;if (element.Count() > 0)Heng = element.ElementAt(0).SeriesPoint.NumericalArgument;Zong = element.ElementAt(0).SeriesPoint.Values[0];}}

 var axis = chartControl_Alt.Diagram as DevExpress.XtraCharts.XYDiagram;axis.AxisX.ConstantLines[0].AxisValue = Heng;axis.AxisX.ConstantLines[0.Visible = trueaxis.AxisX.ConstantLines[1].AxisValue = 160;axis.AxisX.ConstantLines[1.Visible = true;

 //这里的两条线都是垂直于x轴的线，先可以通过代码添加，也可以提前在Run Designer里面添加好初始设置为不可见。