How to Iterate over Values in a Dictionary in C#

How to Iterate over Values in a Dictionary in C# ?

Answer

To iterate over the values in a dictionary in C#, you can use a `foreach` loop to loop through the `Values` property of the `Dictionary` class from the `System.Collections.Generic` namespace. This allows you to access each value individually.

✐ Examples

1 Iterating over Values Using a `foreach` Loop

We can iterate over the values in a dictionary in C# using a `foreach` loop. This example demonstrates how to loop through the values of a dictionary and print each value.

For example,

We start by including the necessary namespace: using System.Collections.Generic;.
We declare and initialize a dictionary named myDictionary with integer keys and string values.
We use a `foreach` loop to iterate over the `Values` property of the dictionary.
We print each value inside the loop.

C# Program

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        // Declare and initialize a dictionary
        Dictionary<int, string> myDictionary = new Dictionary<int, string>
        {
            {1, "One"},
            {2, "Two"},
            {3, "Three"}
        };

        // Iterate over the values in the dictionary
        Console.WriteLine("Values in the dictionary:");
        foreach (string value in myDictionary.Values)
        {
            Console.WriteLine("Value: {0}", value);
        }
    }
}

Output

Values in the dictionary:
Value: One
Value: Two
Value: Three

2 Iterating over Values and Accessing Corresponding Keys

We can iterate over the values in a dictionary in C# using a `foreach` loop and access the corresponding keys. This example demonstrates how to loop through the values of a dictionary and print each value along with its associated key.

For example,

We start by including the necessary namespace: using System.Collections.Generic;.
We declare and initialize a dictionary named myDictionary with integer keys and string values.
We use a `foreach` loop to iterate over the `Values` property of the dictionary.
Inside the loop, we access and print the key associated with each value.

C# Program

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        // Declare and initialize a dictionary
        Dictionary<int, string> myDictionary = new Dictionary<int, string>
        {
            {1, "One"},
            {2, "Two"},
            {3, "Three"}
        };

        // Iterate over the values in the dictionary and access corresponding keys
        Console.WriteLine("Values and keys in the dictionary:");
        foreach (string value in myDictionary.Values)
        {
            // Find the corresponding key for the value
            foreach (var kvp in myDictionary)
            {
                if (kvp.Value == value)
                {
                    Console.WriteLine("Key: {0}, Value: {1}", kvp.Key, value);
                    break;
                }
            }
        }
    }
}

Output

Values and keys in the dictionary:
Key: 1, Value: One
Key: 2, Value: Two
Key: 3, Value: Three

Summary

In this tutorial, we learned How to Iterate over Values in a Dictionary in C# language with well detailed examples.

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