WPFTookit Chart 高级进阶

数据源增加SeriesSource

使用方式

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<Charting:Chart x:Name="chart" Helper:ChartHelper.DependentValueBinding="Value" Helper:ChartHelper.IndependentValueBinding="Key" Helper:ChartHelper.Title="TitlePropertyOnCollection" Helper:ChartHelper.SeriesType="Line" Helper:ChartHelper.SeriesSource="{Binding Path=MyCollectionofCollections}" />

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增加依赖属性

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public enum SeriesType {     Line,     Bar,     Column,     Scatter,     Pie }

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public class ChartHelper {     #region SeriesSource       public static readonly DependencyProperty SeriesSourceProperty =             DependencyProperty.RegisterAttached("SeriesSource",                                                 typeof(IEnumerable),                                                 typeof(ChartHelper),                                                 new PropertyMetadata(SeriesSourceChanged));       public static IEnumerable GetSeriesSource(DependencyObject d)     {         return (IEnumerable)d.GetValue(SeriesSourceProperty);     }       public static void SetSeriesSource(DependencyObject d, IEnumerable value)     {         d.SetValue(SeriesSourceProperty, value);     }       #endregion       #region DependentValueBinding       public static readonly DependencyProperty DependentValueBindingProperty =         DependencyProperty.RegisterAttached("DependentValueBinding",                                             typeof(string),                                             typeof(ChartHelper),                                             null);       public static string GetDependentValueBinding(DependencyObject d)     {         return (string)d.GetValue(DependentValueBindingProperty);     }       public static void SetDependentValueBinding(DependencyObject d, string value)     {         d.SetValue(DependentValueBindingProperty, value);     }       #endregion       #region IndependentValueBinding       public static readonly DependencyProperty IndependentValueBindingProperty =         DependencyProperty.RegisterAttached("IndependentValueBinding",                                             typeof(string),                                             typeof(ChartHelper),                                             null);       public static string GetIndependentValueBinding(DependencyObject d)     {         return (string)d.GetValue(IndependentValueBindingProperty);     }       public static void SetIndependentValueBinding(DependencyObject d, string value)     {         d.SetValue(IndependentValueBindingProperty, value);     }       #endregion       #region Title       public static readonly DependencyProperty TitleProperty =         DependencyProperty.RegisterAttached("Title",                                             typeof(string),                                             typeof(ChartHelper),                                             null);       public static string GetTitle(DependencyObject d)     {         return (string)d.GetValue(TitleProperty);     }       public static void SetTitle(DependencyObject d, string value)     {         d.SetValue(TitleProperty, value);     }       #endregion       #region SeriesType       public static readonly DependencyProperty SeriesTypeProperty =         DependencyProperty.RegisterAttached("SeriesType",                                             typeof(SeriesType),                                             typeof(ChartHelper),                                             new PropertyMetadata(SeriesType.Bar));       public static SeriesType GetSeriesType(DependencyObject d)     {         return (SeriesType)d.GetValue(SeriesTypeProperty);     }       public static void SetSeriesType(DependencyObject d, SeriesType value)     {         d.SetValue(SeriesTypeProperty, value);     }       #endregion       #region SeriesStyle       public static readonly DependencyProperty SeriesStyleProperty =         DependencyProperty.RegisterAttached("SeriesStyle",                                             typeof(Style),                                             typeof(ChartHelper),                                             null);       public static Style GetSeriesStyle(DependencyObject d)     {         return (Style)d.GetValue(SeriesStyleProperty);     }       public static void SetSeriesStyle(DependencyObject d, Style value)     {         d.SetValue(SeriesStyleProperty, value);     }       #endregion       private static void SeriesSourceChanged(DependencyObject d,                                             DependencyPropertyChangedEventArgs e)     {         if(!(d is Chart))         {             throw new Exception("Series attached property only works on a Chart type");         }           var chart = d as Chart;           /* Clear out any old series in the chart */         chart.Series.Clear();           /* Get our collection of data we need for each series */         var chartSeriesSource = e.NewValue as IEnumerable;           if(chartSeriesSource == null)             throw new Exception("The SeriesSource does not support IEnumerable");           /* Loop over each collection of data */         foreach(var dataSource in chartSeriesSource)         {             DynamicSeries series;               /* Find out what type of series we want to use */             var seriesType = GetSeriesType(chart);               switch(seriesType)             {                 case SeriesType.Line:                     series = new LineSeries();                     break;                 case SeriesType.Bar:                     series = new BarSeries();                     break;                 case SeriesType.Column:                     series = new ColumnSeries();                     break;                 case SeriesType.Pie:                     series = new PieSeries();                     break;                 case SeriesType.Scatter:                     series = new ScatterSeries();                     break;                 default:                     throw new ArgumentOutOfRangeException();             }               /* Get and set the style of the newly created series */             var seriesStyle = GetSeriesStyle(chart);             series.Style = seriesStyle;                           string titleBindingName = GetTitle(chart);                           if (!string.IsNullOrEmpty(titleBindingName))             {                 /* Do some binding of the Title property */                 var titleBinding = new Binding(titleBindingName)                 {                     Source = series.Title, Mode = BindingMode.TwoWay                 };                   series.SetBinding(Series.TitleProperty, titleBinding);             }               /* Setup the bindings configured in the attached properties */             series.DependentValueBinding = new Binding(GetDependentValueBinding(chart));             series.IndependentValueBinding = new Binding(GetIndependentValueBinding(chart));               /*Set the ItemsSource property, which gives the data to the series to be rendered */             series.ItemsSource = dataSource as IEnumerable;               /* Add the series to the chart */             chart.Series.Add(series);         }     } }