通过MVVM自动生成序列

本主题假设您已经创建了一个新的Visual Studio工程，并为您的工程添加了适当的引用。

步骤1）创建标记

这是让您开工的XAML标记：

XAML	拷贝代码
<c1:C1Chart Name="c1Chart1"> <c1:C1Chart.Data> <c1:ChartData SeriesItemsSource="{Binding SeriesDataCollection}"> <c1:ChartData.SeriesItemTemplate> <DataTemplate> <c1:DataSeries Label="{Binding Year}" ValuesSource="{Binding Values}" /> </DataTemplate> </c1:ChartData.SeriesItemTemplate> </c1:ChartData> </c1:C1Chart.Data> <c1:C1ChartLegend DockPanel.Dock="Right" /> </c1:C1Chart>

XAML

拷贝代码

<c1:C1Chart Name="c1Chart1">
    <c1:C1Chart.Data>
        <c1:ChartData SeriesItemsSource="{Binding SeriesDataCollection}">
         <c1:ChartData.SeriesItemTemplate>
                <DataTemplate>
                    <c1:DataSeries Label="{Binding Year}" ValuesSource="{Binding Values}" />
              </DataTemplate>
    </c1:ChartData.SeriesItemTemplate>
        </c1:ChartData>
    </c1:C1Chart.Data>
    <c1:C1ChartLegend DockPanel.Dock="Right" />
</c1:C1Chart>

请注意，SeriesItemsSource以及SeriesItemTemplate属性在ChartData 对象上进行设置，他们将绑定到具体的值。

步骤2）创建视图模型
接下来，您需要创建您的项目视图。
右键单击您的项目名称，选择添加新项|选择代码文件，将其命名为ViewModel.cs，并单击“确定”。
将下面的代码添加到您的代码文件中，以创建视图模型：

C#	拷贝代码
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ComponentModel; using System.Collections.ObjectModel; namespace ChartAutomaticSeries { public static class ViewModelData { public static int NUM_SERIES = 5; public static int NUM_POINTS = 8; public static Random Rnd = new Random(); private static ChartModelData _data; public static ChartModelData ChartData { get { if (_data == null) { _data = new ChartModelData(); } return _data; } } } public class ChartModelData { public ObservableCollection<SeriesData> SeriesDataCollection { get { if (_seriesDataCollection == null) { _seriesDataCollection = new ObservableCollection<SeriesData>(); for (int i = 0; i < ViewModelData.NUM_SERIES; i++) _seriesDataCollection.Add(new SeriesData(2010 + i)); } return _seriesDataCollection; } } private ObservableCollection<SeriesData> _seriesDataCollection; } public class SeriesData : INotifyPropertyChanged { int _year; double[] _values; public SeriesData(int year) { _year = year; _values = new double[ViewModelData.NUM_POINTS]; for (int i = 0; i < ViewModelData.NUM_POINTS; i++) _values[i] = ViewModelData.Rnd.Next(0, 100); } public int Year { get { return _year; } set { if (_year != value) { _year = value; OnPropertyChanged("Year"); } } } public double[] Values { get { return _values; } set { if (_values != value) { _values = value; OnPropertyChanged("Values"); } } } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; private void OnPropertyChanged(string propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } #endregion } }

拷贝代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.Collections.ObjectModel;

namespace ChartAutomaticSeries
{
    public static class ViewModelData
    {
        public static int NUM_SERIES = 5;
        public static int NUM_POINTS = 8;

        public static Random Rnd = new Random();

        private static ChartModelData _data;

        public static ChartModelData ChartData
        {
            get
            {
                if (_data == null)
                {
                    _data = new ChartModelData();
                }
                return _data;
            }
        }
    }

    public class ChartModelData
    {
        public ObservableCollection<SeriesData> SeriesDataCollection
        {
            get
            {
                if (_seriesDataCollection == null)
                {
                    _seriesDataCollection = new ObservableCollection<SeriesData>();
                    for (int i = 0; i < ViewModelData.NUM_SERIES; i++)
                        _seriesDataCollection.Add(new SeriesData(2010 + i));
                }
                return _seriesDataCollection;
            }
        }
        private ObservableCollection<SeriesData> _seriesDataCollection;
    }

    public class SeriesData : INotifyPropertyChanged
    {
        int _year;
        double[] _values;

        public SeriesData(int year)
        {
            _year = year;

            _values = new double[ViewModelData.NUM_POINTS];
            for (int i = 0; i < ViewModelData.NUM_POINTS; i++)
                _values[i] = ViewModelData.Rnd.Next(0, 100);
        }

        public int Year
        {
            get { return _year; }
            set
            {
                if (_year != value)
                {
                    _year = value;
                    OnPropertyChanged("Year");
                }
            }
        }

        public double[] Values
        {
            get { return _values; }
            set
            {
                if (_values != value)
                {
                    _values = value;
                    OnPropertyChanged("Values");
                }
            }
        }

        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;

        private void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }

        #endregion
    }
}

步骤3）添加代码

切换回您的MainWindow.xaml文件。右键单击“页面”，并从“上下文”菜单中选择“查看代码”。
编辑现有的代码，以便它类似于以下：

C#	拷贝代码
public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); this.DataContext = new ChartModelData(); } } }

查看其它

AutoGenerateSeries 属性