KeyValuePairComparer

KeyValuePairComparer compares KeyValuePair<,>.

// Create pairs
var pairs = new KeyValuePair<string, string>[]
{
    new KeyValuePair<string, string>("Key3", "Value1"),
    new KeyValuePair<string, string>("Key2", "Value2"),
    new KeyValuePair<string, string>("Key1", "Value3")
};
// Create comparer
IComparer<KeyValuePair<string, string>> comparer =
    new KeyValuePairComparer<string, string>(
        Comparer<string>.Default,
        Comparer<string>.Default
    );
// Sort
Array.Sort(pairs, comparer); // Key1, Key2, Key3

KeyValuePairComparer.Instance uses default key and value comparers.

// Use default comparer
IComparer<KeyValuePair<string, string>> comparer =
    KeyValuePairComparer<string, string>.Instance;
// Sort
Array.Sort(pairs, comparer); // Key1, Key2, Key3

KeyValuePairEqualityComparer

KeyValuePairEqualityComparer compares KeyValuePair<,>.

// Create pairs
var pair1 = new KeyValuePair<string, string>("Key3", "Value1");
var pair2 = new KeyValuePair<string, string>("Key2", "Value1");
// Create comparer
IEqualityComparer<KeyValuePair<string, string>> comparer =
    new KeyValuePairEqualityComparer<string, string>(
        EqualityComparer<string>.Default,
        EqualityComparer<string>.Default
    );
// Compare
bool equal = comparer.Equals(pair1, pair2);

KeyValuePairEqualityComparer.Instance uses default key and value comparers.

// Create pairs
var pair1 = new KeyValuePair<string, string>("Key3", "Value1");
var pair2 = new KeyValuePair<string, string>("Key2", "Value1");
// Create comparer
IEqualityComparer<KeyValuePair<string, string>> comparer =
    KeyValuePairEqualityComparer<string, string>.Instance;
// Compare
bool equal = comparer.Equals(pair1, pair2);

Full Example

Full example

using System;
using System.Collections.Generic;
using Avalanche.Utilities;

class keyvaluepairecomparer
{
    public static void Run()
    {
        {
            // <01>
            // Create pairs
            var pairs = new KeyValuePair<string, string>[]
            {
                new KeyValuePair<string, string>("Key3", "Value1"),
                new KeyValuePair<string, string>("Key2", "Value2"),
                new KeyValuePair<string, string>("Key1", "Value3")
            };
            // Create comparer
            IComparer<KeyValuePair<string, string>> comparer =
                new KeyValuePairComparer<string, string>(
                    Comparer<string>.Default,
                    Comparer<string>.Default
                );
            // Sort
            Array.Sort(pairs, comparer); // Key1, Key2, Key3
            // </01>            
            Print(pairs);
        }
        {
            // Create pairs
            var pairs = new KeyValuePair<string, string>[]
            {
                new KeyValuePair<string, string>("Key3", "Value1"),
                new KeyValuePair<string, string>("Key2", "Value2"),
                new KeyValuePair<string, string>("Key1", "Value3")
            };
            // <02>
            // Use default comparer
            IComparer<KeyValuePair<string, string>> comparer =
                KeyValuePairComparer<string, string>.Instance;
            // Sort
            Array.Sort(pairs, comparer); // Key1, Key2, Key3
            // </02>            
            Print(pairs);
        }
        {
            // <03>
            // Create pairs
            var pair1 = new KeyValuePair<string, string>("Key3", "Value1");
            var pair2 = new KeyValuePair<string, string>("Key2", "Value1");
            // Create comparer
            IEqualityComparer<KeyValuePair<string, string>> comparer =
                new KeyValuePairEqualityComparer<string, string>(
                    EqualityComparer<string>.Default,
                    EqualityComparer<string>.Default
                );
            // Compare
            bool equal = comparer.Equals(pair1, pair2);
            // </03>            
        }
        {
            // Create pairs
            var pairs = new KeyValuePair<string, string>[]
            {
                new KeyValuePair<string, string>("Key3", "Value1"),
                new KeyValuePair<string, string>("Key2", "Value2"),
                new KeyValuePair<string, string>("Key1", "Value3")
            };
            // <04>
            // Create pairs
            var pair1 = new KeyValuePair<string, string>("Key3", "Value1");
            var pair2 = new KeyValuePair<string, string>("Key2", "Value1");
            // Create comparer
            IEqualityComparer<KeyValuePair<string, string>> comparer =
                KeyValuePairEqualityComparer<string, string>.Instance;
            // Compare
            bool equal = comparer.Equals(pair1, pair2);
            // </04>            
        }
    }

    static void Print<T>(IEnumerable<T> enumr) => Console.WriteLine(String.Join(", ", enumr));
}