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C# List<T>.Remove() Method with Example

C# List<T>.Remove() Method: In this tutorial, we will learn about the Remove() method of List collection with its usage, syntax, and an example using C# program. By IncludeHelp Last updated : April 15, 2023

C# List<T>.Remove() Method

List<T>.Remove() method is used to remove a given item from the list.

Syntax

bool List<T>.Remove(T item);

Parameter(s)

It accepts an item of type T to delete from the list.

Return Value

It returns a Boolean value, if item deleted successfully – it returns true, if item was not found in the list – it returns false.

Example

int list declaration:
List<int> a = new List<int>();

Adding elements:
a.Add(10);
a.Add(20);
a.Add(30);
a.Add(40);
a.Add(50);
    
Removing elements
a.Remove(10)    //will return true 
a.Remove(40)    //will return true 
a.Remove(60)    //will return false
    
Output:
20 30 50

C# program to remove items from the list using List<T>.Remove() method

using System;
using System.Text;
using System.Collections.Generic;

namespace Test {
  class Program {
    static void printList(List <int> lst) {
      //printing elements
      foreach(int item in lst) {
        Console.Write(item + " ");
      }
      Console.WriteLine();
    }

    static void Main(string[] args) {
      //integer list
      List <int> a = new List <int> ();

      //adding elements
      a.Add(10);
      a.Add(20);
      a.Add(30);
      a.Add(40);
      a.Add(50);

      //print the list
      Console.WriteLine("list elements...");
      printList(a);

      //remove elements
      if (a.Remove(10))
        Console.WriteLine("10 is removed.");
      else
        Console.WriteLine("10 does not exist in the list.");

      if (a.Remove(40))
        Console.WriteLine("20 is removed.");
      else
        Console.WriteLine("20 does not exist in the list.");

      if (a.Remove(100))
        Console.WriteLine("100 is removed.");
      else
        Console.WriteLine("100 does not exist in the list.");

      //list after removing the elements
      Console.WriteLine("list elements after removing elements...");
      printList(a);

      //hit ENTER to exit
      Console.ReadLine();
    }
  }
}

Output

list elements...
10 20 30 40 50
10 is removed.
20 is removed.
100 does not exist in the list.
list elements after removing elements...
20 30 50

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