这篇文章主要介绍了DevExpress之ChartControl用法实例总结,需要的朋友可以参考下
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);
- }
- }
- }
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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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上述代码运行效果如下图所示:
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