[DevExpress]ChartControl之柱状图示例
关键代码：
using System; using System.Data; using System.Windows.Forms; using CSharpUtilHelpV2; using DevExpress.XtraCharts; namespace DevExpressChart { public partial class winProduct : Form { public winProduct() { InitializeComponent(); } static readonly string AccessFullPath = string.Format(@"{0}\Northwind.MDB", AppDomain.CurrentDomain.BaseDirectory); static DataTable ProductList = null; AccessUtilsV2 AccessHelper = null; private void winChat_Load(object sender, EventArgs e) { AccessHelper = new AccessUtilsV2(AccessFullPath); ProductList = AccessHelper.ExecuteDataTable("select * from Products", null); BuilderDevChart(); } private void BuilderDevChart() { if (ProductList != null) { Series _barSeries = new Series("测试", ViewType.Bar); _barSeries.ArgumentDataMember = "ProductName";//x轴 _barSeries.ValueDataMembers[0] = "UnitPrice";//Y轴 _barSeries.DataSource = ProductList; _barSeries.AddDataFilter("CategoryID", 4, DataFilterCondition.Equal); _barSeries.SetColorEach(true); chartControl1.Series.Add(_barSeries); _barSeries.LegendPointOptions.PointView = PointView.ArgumentAndValues; //chartControl1.SeriesDataMember = "UnitPrice"; //chartControl1.SeriesTemplate.ValueDataMembers[0] = "UnitPrice"; //chartControl1.SeriesTemplate.ArgumentDataMember = "ProductName"; //chartControl1.SeriesTemplate.ArgumentScaleType = ScaleType.Qualitative; //chartControl1.SeriesTemplate.AddDataFilter("CategoryID", 4, DataFilterCondition.Equal); //chartControl1.SeriesTemplate.LegendPointOptions.PointView = PointView.ArgumentAndValues; chartControl1.SetXLableAngle(-35); chartControl1.SetCrosshair(true); chartControl1.Legend.Direction = LegendDirection.LeftToRight; chartControl1.Legend.AlignmentHorizontal = LegendAlignmentHorizontal.Center; chartControl1.Legend.AlignmentVertical = LegendAlignmentVertical.BottomOutside; chartControl1.DataSource = ProductList; chartControl1.AddTitle("Product List"); //-------------------------- } } } }
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using DevExpress.Utils; using DevExpress.XtraCharts; namespace DevExpressChart { public static class ChartUtils { /// <summary> /// 增加数据筛选 /// </summary> /// <param name="SeriesBase">Series</param> /// <param name="columnName">列名称</param> /// <param name="value">列名称对应的筛选数值</param> /// <param name="dataFilterCondition">DataFilterCondition枚举</param> public static void AddDataFilter(this SeriesBase series, string columnName, object value, DataFilterCondition dataFilterCondition) { series.DataFilters.Add(new DataFilter(columnName, value.GetType().FullName, dataFilterCondition, value)); } /// <summary> /// 设置X轴Lable角度 /// </summary> /// <param name="chart">ChartControl</param> /// <param name="angle">角度</param> public static void SetXLableAngle(this ChartControl chart, int angle) { XYDiagram _xyDiagram = (XYDiagram)chart.Diagram; if (_xyDiagram != null) _xyDiagram.AxisX.Label.Angle = angle; } /// <summary> /// 设置Y轴Lable角度 /// </summary> /// <param name="chart">ChartControl</param> /// <param name="angle">角度</param> public static void SetYLableAngle(this ChartControl chart, int angle) { XYDiagram _xyDiagram = (XYDiagram)chart.Diagram; _xyDiagram.AxisY.Label.Angle = angle; } /// <summary> /// 设置ColorEach /// </summary> /// <param name="chart">ChartControl</param> /// <param name="colorEach">是否设置成ColorEach</param> public static void SetColorEach(this Series series, bool colorEach) { SeriesViewColorEachSupportBase colorEachView = (SeriesViewColorEachSupportBase)series.View; if (colorEachView != null) { colorEachView.ColorEach = colorEach; } } /// <summary> /// 设置是否显示十字标线 /// </summary> /// <param name="chart">ChartControl</param> /// <param name="crosshair">是否显示十字标线</param> 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; } /// <summary> /// 新增ChartControl的Title文字 /// </summary> /// <param name="chart">ChartControl</param> /// <param name="title">Title文字</param> public static void AddTitle(this ChartControl chart, string title) { ChartTitle _title = new ChartTitle(); _title.Text = title; chart.Titles.Add(_title); } /// <summary> /// 饼状Series设置成百分比显示 /// </summary> /// <param name="series">Series</param> 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; } } } }
运行效果：
希望有所帮助！谢谢！