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How to check whether a List contains the elements that match the specified conditions in C#?
To check whether a List contains the elements that match the specified conditions in C#, the code is as follows −
Example
using System;
using System.Collections.Generic;
public class Demo {
private static bool demo(int i) {
return ((i % 3) == 0);
}
public static void Main(String[] args) {
List<int> list = new List<int>();
list.Add(255);
list.Add(315);
list.Add(410);
list.Add(500);
list.Add(600);
list.Add(710);
list.Add(800);
list.Add(1000);
Console.WriteLine("List elements...");
foreach (int i in list) {
Console.WriteLine(i);
}
Console.WriteLine("Does some elements match the predicate = "+list.Exists(demo));
}
}Output
This will produce the following output −
List elements... 255 315 410 500 600 710 800 1000 Does some elements match the predicate = True
Let us now see another example −
Example
using System;
using System.Collections.Generic;
public class Demo {
private static bool demo(int i) {
return ((i % 7) == 0);
}
public static void Main(String[] args) {
List<int> list = new List<int>();
list.Add(255);
list.Add(310);
list.Add(410);
list.Add(500);
list.Add(600);
Console.WriteLine("List elements...");
foreach (int i in list) {
Console.WriteLine(i);
}
Console.WriteLine("Does some elements match the predicate = "+list.Exists(demo));
}
}Output
This will produce the following output −
List elements... 255 310 410 500 600 Does some elements match the predicate = False
Updated on: 16-Dec-2019
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