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  • C#教程之DevExpress之ChartControl实现时间轴实例

  • 2018-01-12 22:36 来源:未知

本文实例讲述了DevExpress采用ChartControl实现时间轴的方法,分享给大家供大家参考。具体实现方法如下:

关键代码如下:

 

复制代码 代码如下:
using System;
using System.Data;
using System.Windows.Forms;
using DevExpress.XtraCharts;

 

namespace DevExpressChart
{
    public partial class winDateTime : Form
    {
        public winDateTime()
        {
            InitializeComponent();
        }

        private void winDateTime_Load(object sender, EventArgs e)
        {
            BuilderDevChart();
        }
        private DataTable CreateChartData()
        {
            DataTable table = new DataTable("Table1");
            table.Columns.Add("Date", typeof(DateTime));
            table.Columns.Add("Value", typeof(Int32));
            table.Rows.Add(new object[] { new DateTime(2014, 5, 21), 10 });
            table.Rows.Add(new object[] { new DateTime(2014, 6, 22), 20 });
            table.Rows.Add(new object[] { new DateTime(2014, 7, 23), 40 });
            table.Rows.Add(new object[] { new DateTime(2014, 8, 24), 20 });
            table.Rows.Add(new object[] { new DateTime(2014, 9, 25), 30 });
            return table;
        }
        private void BuilderDevChart()
        {
            Series _lineSeries = new Series("利润", ViewType.Line);
            _lineSeries.ArgumentScaleType = ScaleType.DateTime;
            _lineSeries.ArgumentDataMember = "Date";
            _lineSeries.ValueDataMembers[0] = "Value";
            _lineSeries.DataSource = CreateChartData();
            chartControl1.Series.Add(_lineSeries);

            chartControl1.SetTimeAxisX(DateTimeMeasurementUnit.Month, DateTimeMeasurementUnit.Month, "yyyy-MM");
            //---------------------------------------------------------------

            //_lineSeries.ValueScaleType = ScaleType.DateTime;
            //_lineSeries.ArgumentDataMember = "Value";
            //_lineSeries.ValueDataMembers[0] = "Date";
            //_lineSeries.DataSource = CreateChartData();
            //chartControl1.Series.Add(_lineSeries);

            //XYDiagram _diagram = (XYDiagram)chartControl1.Diagram;
            //_diagram.AxisY.DateTimeMeasureUnit = DateTimeMeasurementUnit.Month;
            //_diagram.AxisY.DateTimeGridAlignment = DateTimeMeasurementUnit.Month;
            //_diagram.AxisY.DateTimeOptions.Format = DateTimeFormat.Custom;
            //_diagram.AxisY.DateTimeOptions.FormatString = "MMMM";
        }
    }
}

 

 

复制代码 代码如下:
using DevExpress.Utils;
using DevExpress.XtraCharts;

 

namespace DevExpressChart
{
    public static class ChartUtils
    {
        /// <summary>
        /// 增加数据筛选
        /// </summary>
        /// <param name="SeriesBase">Series</param>
        /// <param name="columnName">列名称</param>
        /// <param name="value">列名称对应的筛选数值</param>
        /// <param name="dataFilterCondition">DataFilterCondition枚举</param>
        public static void AddDataFilter(this SeriesBase series, string columnName, object value, DataFilterCondition dataFilterCondition)
        {
            series.DataFilters.Add(new DataFilter(columnName, value.GetType().FullName, dataFilterCondition, value));
        }

        /// <summary>
        /// 设置X轴Lable角度
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="angle">角度</param>
        public static void SetXLableAngle(this ChartControl chart, int angle)
        {
            XYDiagram _xyDiagram = (XYDiagram)chart.Diagram;
            if (_xyDiagram != null)
                _xyDiagram.AxisX.Label.Angle = angle;
        }
        /// <summary>
        ///  设置Y轴Lable角度
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="angle">角度</param>
        public static void SetYLableAngle(this ChartControl chart, int angle)
        {
            XYDiagram _xyDiagram = (XYDiagram)chart.Diagram;
            _xyDiagram.AxisY.Label.Angle = angle;
        }
        /// <summary>
        /// 设置ColorEach
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="colorEach">是否设置成ColorEach</param>
        public static void SetColorEach(this Series series, bool colorEach)
        {
            SeriesViewColorEachSupportBase colorEachView = (SeriesViewColorEachSupportBase)series.View;
            if (colorEachView != null)
            {
                colorEachView.ColorEach = colorEach;
            }
        }
        /// <summary>
        /// 设置是否显示十字标线
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="crosshair">是否显示十字标线</param>
        public static void SetCrosshair(this ChartControl chart, bool crosshair)
        {
            chart.CrosshairEnabled = crosshair ? DefaultBoolean.True : DefaultBoolean.False;
            chart.CrosshairOptions.ShowArgumentLabels = crosshair;
            chart.CrosshairOptions.ShowArgumentLine = crosshair;
            chart.CrosshairOptions.ShowValueLabels = crosshair;
            chart.CrosshairOptions.ShowValueLine = crosshair;
        }
        /// <summary>
        /// 新增ChartControl的Title文字
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="title">Title文字</param>
        public static void AddTitle(this ChartControl chart, string title)
        {
            ChartTitle _title = new ChartTitle();
            _title.Text = title;
            chart.Titles.Add(_title);
        }
        /// <summary>
        /// 饼状Series设置成百分比显示
        /// </summary>
        /// <param name="series">Series</param>
        public static void SetPiePercentage(this Series series)
        {
            if (series.View is PieSeriesView)
            {
                ((PiePointOptions)series.PointOptions).PercentOptions.ValueAsPercent = true;
                ((PiePointOptions)series.PointOptions).ValueNumericOptions.Format = NumericFormat.Percent;
                ((PiePointOptions)series.PointOptions).ValueNumericOptions.Precision = 0;
            }
        }
        /// <summary>
        /// 将X轴格式化成时间轴
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="dateTimeMeasureUnit">X轴刻度单位</param>
        /// <param name="dateTimeGridAlignment">X轴刻度间距的单位</param>
        public static void SetTimeAxisX(this ChartControl chart, DateTimeMeasurementUnit dateTimeMeasureUnit, DateTimeMeasurementUnit dateTimeGridAlignment)
        {
            XYDiagram _diagram = (XYDiagram)chart.Diagram;
            if (_diagram != null)
            {
                _diagram.AxisX.DateTimeMeasureUnit = DateTimeMeasurementUnit.Month;//X轴刻度单位
                _diagram.AxisX.DateTimeGridAlignment = DateTimeMeasurementUnit.Month;//X轴刻度间距
            }
        }
        /// <summary>
        /// 将X轴格式化成时间轴
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="dateTimeMeasureUnit">X轴刻度单位</param>
        /// <param name="dateTimeGridAlignment">X轴刻度间距的单位</param>
        /// <param name="formatString">时间格式;eg:yyyy-MM</param>
        public static void SetTimeAxisX(this ChartControl chart, DateTimeMeasurementUnit dateTimeMeasureUnit, DateTimeMeasurementUnit dateTimeGridAlignment, string formatString)
        {
            XYDiagram _diagram = (XYDiagram)chart.Diagram;
            if (_diagram != null)
            {
                _diagram.AxisX.DateTimeMeasureUnit = DateTimeMeasurementUnit.Month;//X轴刻度单位
                _diagram.AxisX.DateTimeGridAlignment = DateTimeMeasurementUnit.Month;//X轴刻度间距
                _diagram.AxisX.DateTimeOptions.Format = DateTimeFormat.Custom;
                _diagram.AxisX.DateTimeOptions.FormatString = formatString;
            }
        }
    }
}


运行效果如下图所示:

 

希望本文所述对大家的C#程序设计有所帮助

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