[DevExpress]ChartControl之基准线示例

关键代码：

        /// <summary>

        /// 创建基准线ConstantLine

        /// </summary>

        /// <param name="chart">ChartControl</param>

        /// <param name="ctAxisValue">基准线数值</param>

        /// <param name="ctLegendText">基准线图例文字</param>

        /// <param name="ctTitle">基准线文字</param>

        /// <param name="ctTitleColor">基准线字体颜色</param>

        /// <param name="ctLineColor">基准线颜色</param>

        /// <param name="ctLineStyle">基准线样式</param>

        public static void CreateConstantLine(this ChartControl chart, int ctAxisValue, string ctLegendText, string ctTitle, Color ctTitleColor, Color ctLineColor, DashStyle ctLineStyle)

        {

            XYDiagram _diagram = (XYDiagram)chart.Diagram;

            if (_diagram != null)

            {

                ConstantLine _ctLine = new ConstantLine();



                _ctLine.AxisValue = ctAxisValue;

                _ctLine.Visible = true;

                _ctLine.ShowInLegend = true;

                _ctLine.LegendText = ctLegendText;

                _ctLine.ShowBehind = false;



                _ctLine.Title.Visible = true;

                _ctLine.Title.Text = ctTitle;

                _ctLine.Title.TextColor = ctTitleColor;

                _ctLine.Title.Antialiasing = false;

                _ctLine.Title.Font = new Font("Tahoma", 14, FontStyle.Bold);

                _ctLine.Title.ShowBelowLine = true;

                _ctLine.Title.Alignment = ConstantLineTitleAlignment.Far;



                _ctLine.Color = ctLineColor;

                _ctLine.LineStyle.DashStyle = ctLineStyle;

                _ctLine.LineStyle.Thickness = 2;



                _diagram.AxisY.ConstantLines.Add(_ctLine);

            }

        }

代码使用：

chartControl1.CreateConstantLine(25, "理论利润", "理论利润", Color.Red, Color.Red, DashStyle.Dash);

运行效果：

希望有所帮助！谢谢！