DevExpress之之ChartControl实现时间轴实例 实现时间轴实例 主要介绍了DevExpress中ChartControl实现时间轴的方法,涉及相关C#绘图程序用法,具有一定的实用价值,需要 的朋友可以参考下 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 { ///

/// 增加数据筛选 ///

/// Series /// 列名称 /// 列名称对应的筛选数值 /// DataFilterCondition枚举 public static void AddDataFilter(this SeriesBase series, string columnName, object value, DataFilterCondition dataFilterCondition) { series.DataFilters.Add(new DataFilter(columnName, value.GetType().FullName, dataFilterCondition, value)); } ///

/// 设置X轴Lable角度 ///

/// ChartControl /// 角度 public static void SetXLableAngle(this ChartControl chart, int angle) { XYDiagram _xyDiagram = (XYDiagram)chart.Diagram; if (_xyDiagram != null) _xyDiagram.AxisX.Label.Angle = angle; } ///

/// 设置Y轴Lable角度 ///

/// ChartControl /// 角度 public static void SetYLableAngle(this ChartControl chart, int angle) { XYDiagram _xyDiagram = (XYDiagram)chart.Diagram; _xyDiagram.AxisY.Label.Angle = angle; } ///

/// 设置ColorEach ///

/// ChartControl /// 是否设置成ColorEach public static void SetColorEach(this Series series, bool colorEach) { SeriesViewColorEachSupportBase colorEachView = (SeriesViewColorEachSupportBase)series.View; if (colorEachView != null) { colorEachView.ColorEach = colorEach; } } ///

/// 设置是否显示十字标线 ///

/// ChartControl /// 是否显示十字标线 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; } ///

/// 新增ChartControl的Title文字 

/// /// ChartControl /// Title文字 public static void AddTitle(this ChartControl chart, string title) { ChartTitle _title = new ChartTitle(); _title.Text = title; chart.Titles.Add(_title); } ///

/// 饼状Series设置成百分比显示 ///

/// Series 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; } } ///

/// 将X轴格式化成时间轴 ///

/// ChartControl /// X轴刻度单位 /// X轴刻度间距的单位 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 } } ///

/// 将X轴格式化成时间轴 ///

/// ChartControl /// X轴刻度单位 /// X轴刻度间距的单位 /// 时间格式；eg:yyyy-MM 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： 

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