透视ObservableCollection

我有以下两个课程

Hi,
I have following two classes

public class MyDateObject
    {
        private double? _value1;
        private double? _value2;
        private double? _value3;
        private DateTime _date;

        public double? Value1
        {
            get
            {
                return this._value1;
            }
            set
            {
                this._value1 = value;
            }
        }

        public double? Value2
        {
            get
            {
                return this._value2;
            }
            set
            {
                this._value2 = value;
            }
        }

        public double? Value3
        {
            get
            {
                return this._value3;
            }
            set
            {
                this._value3 = value;
            }
        }

        public DateTime Date
        {
            get
            {
                return this._date;
            }
            set
            {
                this._date = value;
            }
        }

        public MyDateObject(double? value1, double? value2, double? value3, DateTime date)
        {
            this._value1 = value1;
            this._value2 = value2;
            this._value3 = value3;
            this._date = date;
        }
    }

public class MainPageViewModel
    {
        DateTime baseDate = DateTime.Today.AddDays(-15);
        public const int min = 0;
        public const int max = 79;
        Random r = new Random();

        private ObservableCollection<MyDateObject> _chartData;
        public ObservableCollection<MyDateObject> ChartData
        {
            get
            {
                return this._chartData;
            }
            set
            {
                this._chartData = value;
            }
        }

        public MainPageViewModel()
        {
            this.ChartData = new ObservableCollection<MyDateObject>();
            for (int i = 0; i < 30; i++)
            {
                ChartData.Add(new MyDateObject(r.Next(min, max), r.Next(min, max), r.Next(min, max), baseDate.AddDays(i)));
                string str = ChartData[i].Date.ToString();
                pivot.str = ChartData[i].Value1;                
            }
        }
    }

现在我想基于日期转向ChartData绑定到一个看起来像以下格式的网格



............... 1 2 3 4

价值1 6 9 56 78

价值2 8 51 7 21

价值3 79 45 57 25

Now I want to Pivot ChartData on the basis of day to bind to a grid which looks like the following format

...............1 2 3 4
Value 1 6 9 56 78
Value 2 8 51 7 21
Value 3 79 45 57 25