Check if every List element matches the predicate conditions in C#

To check if every List element matches the predicate conditions, the code is as follows −

Example

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   private static bool demo(int i) {
      return ((i % 10) == 0);
   }
   public static void Main(String[] args) {
      List<int> list = new List<int>();
      list.Add(200);
      list.Add(215);
      list.Add(310);
      list.Add(500);
      list.Add(600);
      Console.WriteLine("List elements...");
      foreach (int i in list) {
         Console.WriteLine(i);
      }
      Console.WriteLine(list.TrueForAll(demo));
   }
}

Output

This will produce the following output −

List elements...
200
215
310
500
600
False

Example

Let us see another example −

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   private static bool demo(int i) {
      return ((i % 10) == 0);
   }
   public static void Main(String[] args) {
      List<int> list = new List<int>();
      list.Add(100);
      list.Add(200);
      list.Add(300);
      list.Add(400);
      list.Add(500);
      list.Add(600);
      list.Add(700);
      list.Add(800);
      list.Add(900);
      list.Add(1000);
      Console.WriteLine("List elements...");
      foreach (int i in list) {
         Console.WriteLine(i);
      }
      Console.WriteLine(list.TrueForAll(demo));
   }
}

Output

This will produce the following output −

List elements...
100
200
300
400
500
600
700
800
900
1000
True