Search for an element matching the conditions and return the zero-based index of the last occurrence within the entire List in C#

To search for an element matching the conditions and return the zero-based index of the last occurrence within the entire List, 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("Last Index of the satisfying condition = "+list.FindLastIndex(demo));
   }
}

Output

This will produce the following output −

List elements...
200
215
310
500
600
Last Index of the satisfying condition = 4

Example

Let us now see another example −

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   private static bool demo(int i) {
      return ((i % 2) == 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(655);
      Console.WriteLine("List elements...");
      foreach (int i in list) {
         Console.WriteLine(i);
      }
      Console.WriteLine("Last Index of the satisfying condition = "+list.FindLastIndex(demo));
   }
}

Output

This will produce the following output −

List elements...
200
215
310
500
655
Last Index of the satisfying condition  = 3