如何比较具有相同键但不同值的两个字典值？

Question

I have these two dictionaries and I need to compare the values with the same key.

Dict1={ 1, "blue" 2, "yellow" 3,"red"}

Dict2={ 1, "red" 2, "yellow" 3, "red"}

for instance, compare the values with key 1 and return false. But when it compares the values of key 2 returns true.

Answer 1

A possible solution:

          Dictionary<int, string> d1 = new Dictionary<int, string>
            {
                {1, "blue"},
                {2, "yellow"},
                {3, "red"},
                {4, "black"}
            };

            Dictionary<int, string> d2 = new Dictionary<int, string>()
            {
                {1, "purple"},
                {2, "yellow"},
                {3, "red"},
                {4, "red"}
            };

            var d3 = d2.Where(x => d1[x.Key] == x.Value)
                 .ToDictionary(x => x.Key, x => x.Value);

Answer 2

Maybe you can try with these solution. Here you go through the dict1 keys, and when you find a similar key in dict2, you compare the values of that key in each dictionary.

Dictionary<string, string> dict1 = new Dictionary<string, string>();
Dictionary<string, string> dict2 = new Dictionary<string, string>();

foreach (string k in dict1.Keys){
   if (dict2.ContainsKey(k))
   {
       bool compareValues = (dict1[k] == dict2[k]);
   }
}

Hope it works, tell us if you have another problem!