DevExpress之ChartControl用法-白红宇

DevExpress之ChartControl用法

阅读量：7282 次

发布时间：2019-06-30

本文共 2314 字，大约阅读时间需要 7 分钟。

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{/// /// 创建Series/// 
/// ChartControl/// Series名字『诸如：理论电量』/// seriesType『枚举』/// 数据源/// ChartControl的X轴绑定/// ChartControl的Y轴绑定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);}/// /// 创建Series/// 
/// ChartControl/// Series名字『诸如：理论电量』/// seriesType『枚举』/// 数据源/// ChartControl的X轴绑定/// ChartControl的Y轴绑定/// Series自定义『委托』public static void CreateSeries(this ChartControl chat, string seriesName, ViewType seriesType, object dataSource, string xBindName, string yBindName, Action
     
       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");}/// /// 准备数据源/// 
/// 
     
      DataTable
     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;}