LinkedList Contains Method in C#

Here is our LinkedList.

int [] num = {1, 3, 7, 15};
LinkedList<int> list = new LinkedList<int>(num);

To check whether the list contains an element or not, use the Contains() method. The following example checks for node 3 in the list.

list.Contains(3)

Above, returns True since the element is found as shown below −

Example

 Live Demo

using System;
using System.Collections.Generic;
class Demo {
   static void Main() {
      int [] num = {1, 3, 7, 15};
      LinkedList<int> list = new LinkedList<int>(num);
      foreach (var n in list) {
         Console.WriteLine(n);
      }
      // adding a node at the end
      var newNode = list.AddLast(20);
      // adding a new node after the node added above
      list.AddAfter(newNode, 30);
      Console.WriteLine("LinkedList after adding new nodes...");
      foreach (var n in list) {
         Console.WriteLine(n);
      }
      Console.WriteLine("Is number 3 (node) in the list?: "+list.Contains(3));
   }
}

Output

1
3
7
15
LinkedList after adding new nodes...
1
3
7
15
20
30
Is number 3 (node) in the list?: True