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How to compare two lists and add the difference to a third list in C#?
First, set the two lists −
List One
List < string > list1 = new List < string > ();
list1.Add("A");
list1.Add("B");
list1.Add("C");
list1.Add("D");List Two
List < string > list2 = new List < string > ();
list2.Add("C");
list2.Add("D");To find the difference between the two list and display the difference elements −
IEnumerable < string > list3;
list3 = list1.Except(list2);
foreach(string value in list3) {
Console.WriteLine(value);
}The following is the complete example to compare two lists −
Example
using System;
using System.Collections.Generic;
using System.Linq;
public class Demo {
public static void Main() {
List < string > list1 = new List < string > ();
list1.Add("A");
list1.Add("B");
list1.Add("C");
list1.Add("D");
Console.WriteLine("First list...");
foreach(string value in list1) {
Console.WriteLine(value);
}
Console.WriteLine("Second list...");
List < string > list2 = new List < string > ();
list2.Add("C");
list2.Add("D");
foreach(string value in list2) {
Console.WriteLine(value);
}
Console.WriteLine("Difference in the two lists...");
IEnumerable < string > list3;
list3 = list1.Except(list2);
foreach(string value in list3) {
Console.WriteLine(value);
}
}
}
Updated on: 21-Jun-2020
1K+ Views
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