2
我需要一些幫助來聚合我的集合中的數據。Linq Groupby通過嵌套的可觀察集合
的RrvResponse類
/// <summary>
/// The RRV response.
/// </summary>
public class RrvResponse
{
/// <summary>
/// Initializes a new instance of the <see cref="RrvResponse"/> class.
/// </summary>
public RrvResponse()
{
this.BoDPoints = new ObservableCollection<BidOfferPoint>();
}
/// <summary>
/// Gets or sets the id.
/// </summary>
public string Id { get; set; }
/// <summary>
/// Gets or sets the message date.
/// </summary>
public DateTime MessageDate { get; set; }
/// <summary>
/// Gets or sets the BOD points.
/// </summary>
public ObservableCollection<BidOfferPoint> BoDPoints { get; set; }
}
實施,
var responses = new ObservableCollection<RrvResponse>();
// ....Load responses...
// ...
// ...
響應的次數爲5,所以我有5個的ObservableCollection內響應BoDPoints的。
BOD points are,
/// <summary>
/// The bid offer point.
/// </summary>
public class BidOfferPoint
{
/// <summary>
/// Gets or sets the date.
/// </summary>
public DateTime Date { get; set; }
/// <summary>
/// Gets or sets the time.
/// </summary>
public string Time { get; set; }
/// <summary>
/// Gets or sets the volume.
/// </summary>
public decimal Volume { get; set; }
/// <summary>
/// Gets or sets the price.
/// </summary>
public decimal Price { get; set; }
}
樣品,
Observable Collection Bod - 1
2013-06-21
00:00
100
10
2013-06-21
00:15
120
15
2013-06-21
00:30
150
9
觀察集合佈德 - 2
2013-06-21
00:00
Observable Collection Bod - 1
2013-06-21
00:00
100
10
2013-06-21
00:15
120
15
2013-06-21
00:30
150
9
40
1
2013-06-21
00:15
10
0.5
2013-06-21
00:30
11
0.1
觀察集合佈德 - 3
2013-06-15
00:00
100
10
2013-06-15
00:15
120
15
2013-06-15
00:30
150
9
我想按日期然後小時橫跨組收集和彙總卷。因此在上面的例子中,所有21-06-2013小時00:00的數據都應該彙總,21:00-2013小時00:15的所有數據都應該彙總。
什麼是最好的方法使用Linq來做到這一點?
如何獲得總和的數量? –
啊,你想要的總量。見編輯的答案。 –
非常感謝,很有魅力! –