c# - 将单个对象转换为多个对象 c#

Question

我有一个列表如下

我想将其转换成如下所示的列表

谁能推荐一些示例代码？

我试过下面的代码

class Program
{
    static void Main(string[] args)
    {
        var mockForDataColection = Mock.MockForDataColection();
        Factory f = new Factory();
        List<ResultSet> rl = new List<ResultSet>();
        var groups = mockForDataColection.GroupBy(x => new { group1 = x.GroupIdOne, group2 = x.GroupIdTwo, group3 = x.GroupIdThree }).ToList();

        f.Name = mockForDataColection.FirstOrDefault(c => c.Key == "Chamber").Value;
        f.RunNumber = mockForDataColection.FirstOrDefault(c => c.Key == "RunNumber").Value;
        var groupBy = mockForDataColection.GroupBy(c => c.GroupIdThree).Skip(1);
        foreach (var dataCollection in groupBy)
        {
            ResultSet r = new ResultSet();
            r.BarCode = dataCollection.FirstOrDefault(d => d.Key == "BarCode").Value;
            r.IsPassed = dataCollection.FirstOrDefault(d => d.Key == "IsPassed").Value;
            rl.Add(r);

        }
        f.ResultSet = rl;
    }


}

public class DataCollection
{
    public int GroupIdOne { get; set; }
    public int GroupIdTwo { get; set; }
    public int GroupIdThree { get; set; }
    public string Key { get; set; }
    public string Value { get; set; }

}

public class Factory
{
    public string Name { get; set; }
    public string RunNumber { get; set; }
    public List<ResultSet> ResultSet { get; set; }


}

public class ResultSet
{
    public string BarCode { get; set; }
    public string IsPassed { get; set; }
    public int FailiureCode { get; set; }
}

public static class Mock
{
    public static List<DataCollection> MockForDataColection()
    {
        List<DataCollection> dataCollectionList = new List<DataCollection>();
        DataCollection dataCollection = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 1,
            GroupIdThree = 0,
            Key = "Chamber",
            Value = "Test Chamber"
        };
        DataCollection dataCollection1 = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 1,
            GroupIdThree = 0,
            Key = "RunNumber",
            Value = "2"
        };

        DataCollection dataCollection2 = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 2,
            GroupIdThree = 3,
            Key = "IsPassed",
            Value = "P"
        };

        DataCollection dataCollection3 = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 2,
            GroupIdThree = 3,
            Key = "BarCode",
            Value = "PQWERT"
        };


        DataCollection dataCollection4 = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 2,
            GroupIdThree = 4,
            Key = "IsPassed",
            Value = "F"
        };

        DataCollection dataCollection5 = new DataCollection
        {
            GroupIdOne = 1,
            GroupIdTwo = 2,
            GroupIdThree = 4,
            Key = "BarCode",
            Value = "IUTYY"
        };

        dataCollectionList.Add(dataCollection);
        dataCollectionList.Add(dataCollection1);
        dataCollectionList.Add(dataCollection2);
        dataCollectionList.Add(dataCollection3);
        dataCollectionList.Add(dataCollection4);
        dataCollectionList.Add(dataCollection5);

        return dataCollectionList;
    }
}

我认为这不是一个好的代码。请建议其他一些简单的方法来实现这一目标。

需要将数据采集类转化为工厂类。在数据中，集合类具有键和值属性。键在工厂类中充当属性，值是值。根据 GroupId Only 我们将决定它会转到父类 (Factory) 还是子类 (ResultSet)。

GroupId 一个值相同意味着它都在一个实体下。 GroupId 两个值不同表示是相关实体。

Answer 1

我已经完全编辑了答案，更改了所有内容，使其正确并符合所问的内容。

listA，你要分组的数据

var listA = new List<DataCollection>
{
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 1, GroupIdThree = 0, Key = "Chamber", Value = "Test Chamber" },
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 1, GroupIdThree = 0, Key = "RunNumber", Value = "2"   },
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 2, GroupIdThree = 3, Key = "IsPassed", Value = "P"  },
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 2, GroupIdThree = 3, Key = "BarCode", Value = "PQWERT" },
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 2, GroupIdThree = 4, Key = "IsPassed", Value = "F"},
    new DataCollection { GroupIdOne = 1, GroupIdTwo = 2, GroupIdThree = 4, Key = "BarCode", Value = "IUTYY"}
};

列表B

var listB = listA
    .Where(x => x.Key.Contains("BarCode"))
    .GroupBy(g => new {g.GroupIdOne, g.GroupIdTwo, g.GroupIdThree, g.Key, g.Value})
    .Select(s =>
        new ResultSet
        {
            BarCode = s.Key.Value,
            IsPassed = listA.FirstOrDefault(a => a.Key.Equals("IsPassed")
                                                 && a.GroupIdOne == s.Key.GroupIdOne
                                                 && a.GroupIdTwo == s.Key.GroupIdTwo
                                                 && a.GroupIdThree == s.Key.GroupIdThree

                       )?.Value ?? ""
        })
    .ToList();