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。本文实例展示了ChartControl的用法，具体内容如下：
主要功能代码部分如下：
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; }
上述代码运行效果如下图所示：
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