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  • DevExpress之ChartControl用法

    DevExpress中的ChartControl顾名思义就是数据基于图表展示,其关键在于Series上的处理。

    using System;
    using System.Drawing;
    using DevExpress.XtraCharts;
    
    namespace DevExpressUtilHelpV3
    {
    public static class ChartToolV3
    {
    /// <summary>
    /// 创建Series
    /// </summary>
    /// <param name="chat">ChartControl</param>
    /// <param name="seriesName">Series名字『诸如:理论电量』</param>
    /// <param name="seriesType">seriesType『枚举』</param>
    /// <param name="dataSource">数据源</param>
    /// <param name="xBindName">ChartControl的X轴绑定</param>
    /// <param name="yBindName">ChartControl的Y轴绑定</param>
    public static void CreateSeries(this ChartControl chat, string seriesName, ViewType seriesType, object dataSource, string xBindName, string yBindName)
    {
    CreateSeries(chat, seriesName, seriesType, dataSource, xBindName, yBindName, null);
    }
    /// <summary>
    /// 创建Series
    /// </summary>
    /// <param name="chat">ChartControl</param>
    /// <param name="seriesName">Series名字『诸如:理论电量』</param>
    /// <param name="seriesType">seriesType『枚举』</param>
    /// <param name="dataSource">数据源</param>
    /// <param name="xBindName">ChartControl的X轴绑定</param>
    /// <param name="yBindName">ChartControl的Y轴绑定</param>
    /// <param name="createSeriesRule">Series自定义『委托』</param>
    public static void CreateSeries(this ChartControl chat, string seriesName, ViewType seriesType, object dataSource, string xBindName, string yBindName, Action<Series> createSeriesRule)
    {
    if (chat == null)
    throw new ArgumentNullException("chat");
    if (string.IsNullOrEmpty(seriesName))
    throw new ArgumentNullException("seriesType");
    if (string.IsNullOrEmpty(xBindName))
    throw new ArgumentNullException("xBindName");
    if (string.IsNullOrEmpty(yBindName))
    throw new ArgumentNullException("yBindName");
    
    Series _series = new Series(seriesName, seriesType);
    _series.ArgumentScaleType = ScaleType.Qualitative;
    _series.ArgumentDataMember = xBindName;
    _series.ValueDataMembers[0] = yBindName;
    
    _series.DataSource = dataSource;
    if (createSeriesRule != null)
    createSeriesRule(_series);
    chat.Series.Add(_series);
    }
    
    }
    }

    代码使用示例如下:

    public Form1()
    {
    InitializeComponent();
    }
    private void Form1_Load(object sender, EventArgs e)
    {
    DataTable _dt = CreateTestDB();
    chartControl1.CreateSeries("理论功率", ViewType.Spline, _dt, "time", "Power");
    chartControl1.CreateSeries("实际功率", ViewType.Spline, _dt, "time", "ActulPower");
    }
    /// <summary>
    /// 准备数据源
    /// </summary>
    /// <returns>DataTable</returns>
    private DataTable CreateTestDB()
    {
    DataTable _testData = new DataTable();
    _testData.Columns.Add(new DataColumn("time", typeof(string)));
    _testData.Columns.Add(new DataColumn("Power", typeof(decimal)));
    _testData.Columns.Add(new DataColumn("ActulPower", typeof(decimal)));
    Random _rm = new Random();
    for (int i = 0; i < 24; i++)
    {
    DataRow _drNew = _testData.NewRow();
    _drNew["time"] = string.Format("{0}点", i);
    _drNew["Power"] = 250;
    _drNew["ActulPower"] = _rm.Next(220, 245);
    _testData.Rows.Add(_drNew);
    }
    return _testData;
    }
    

     

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  • 原文地址:https://www.cnblogs.com/zeroone/p/4789984.html
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