In this article you will see how can we get key and values from a dictionary object in C#.

Introduction

Getting keys and values from dictionary is easy task. You can get it with the help of KeyValuePair object or from simple collection. I will explain this in below example. In the example, I have created a dictionary which has integer key with list of string collection as value. Let's see step by step.

Example Code

Declare a dictionary with key of integer type and value of list type of string  Dictionary<int, List<string>>()

Dictionary

//Dictionary item
 Dictionary<int, List<string>> dictionary = new Dictionary<int, List<string>>{
       {1,new List<string>{"Dee", "X", "23"}},
       {2,new List<string>{"Joe", "X", "24"}}
 };

Getting values by key

void GetDictionaryValue()
 {
        //To fetch values on the basis of key
       foreach (int key in dictionary.Keys)
      {
           var details = dictionary[key];
           Console.WriteLine("Details are: {Name=" + details[0] + ", Class=" + details[1] + ", Roll Number=" + details[2]);
      }
 }

Getting key and values from dictionary

void GetKeyAndValueFromDict()
 {
        //To fetch keys and values from dictionary
        foreach (KeyValuePair<int, List<string>> item in dictionary)
       {
            var key = item.Key;
            var value = item.Value;
            Console.WriteLine("Details are: {Name=" + value[0] + ", Class=" + value[1] + ", Roll Number=" + value[2]);
       }
 }

Hope this helps you.