Question

我有词典收藏

{key -> string, value -> class}

我还有另一个字典集

{key -> string, value -> string}

注意：第二个字典集合{key -> string, value -> string}.Value是第一个字典集合{key -> string, value -> class}.Key

所以，我必须根据第二个收集价值从第一个字典集中找到所有数据。

Answer 1

      class MyTest
      {
          public int myValue { get; set; }
      }

 Main()
      {
        Dictionary<string, string> First = new Dictionary<string, string>();
        First.Add("dd", "test");
        First.Add("ss", "test");
        First.Add("tt", "test");
        First.Add("aa", "test");
        First.Add("mm", "test");

        Dictionary<string, MyTest> Second = new Dictionary<string, MyTest>();
        Second.Add("dd", new MyTest() { myValue = 123 });
        Second.Add("oo", new MyTest() { myValue = 123 });
        Second.Add("tt", new MyTest() { myValue = 123 });
        Second.Add("aa", new MyTest() { myValue = 123 });
        Second.Add("rr", new MyTest() { myValue = 123 });

        var Final1 = First.Where(S => Second.Any(T => S.Key.Equals(T.Key)));

        var Final2 = Second.Where(S => First.Any(T => S.Key.Equals(T.Key)));

        Console.WriteLine("\nFirst\n");
        foreach (var item in Final1)
        {
            Console.WriteLine(item.Key + "-" + item.Value);
        }
        Console.WriteLine("\nSecond\n");
        foreach (var item in Final2)
        {
            Console.WriteLine(item.Key + "-" + item.Value.myValue);
        }
 }

Answer 2

根据我对您的问题的理解，您希望根据第二个词典值查找第一个词典。

public class Test
{
    public string MyValue {get;set;}
}
Dictionary<string, Test> DictOne = new Dictionary<string, Test>();
Dictionary<string, string> DictTwo = new Dictionary<string, string>();

DictOne.Add("DictOneKeyOne", new Test() { MyValue = "DictOneValueOne" } );
DictTwo.Add("DictTwoKeyOne", "DictOneKeyOne");

Test ValueFromDictOne = DictOne.ContainsKey(DictTwo["DictTwoKeyOne"]) ? DictOne[DictTwo["DictTwoKeyOne"]] : null;

查找字典集合值中的所有数据到另一个字典集合键

2 个答案: