How to iterate two Lists or Arrays with one foreach statement in C#?

Set two arrays.

var val = new [] { 20, 40, 60}; var str = new [] { "ele1", "ele2", "ele3"};

Use the zip() method to process the two arrays in parallel.

var res = val.Zip(str, (n, w) => new { Number = n, Word = w });

The above fetches both the arrays with int and string elements respectively.

Now, use foreach to iterate the two arrays −

Example

 Live Demo

using System; using System.Collections.Generic; using System.Linq; public class Demo {    public static void Main() {       var val = new [] { 20, 40, 60};       var str = new [] { "ele1", "ele2", "ele3"};       var res = val.Zip(str, (n, w) => new { Number = n, Word = w });       foreach(var a in res) {          Console.WriteLine(a.Number + a.Word);       }    } }

Output

20ele1 40ele2 60ele3