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List<T>.Remove() method with example in C#

C# List<T>.Remove() method: Here, we are going to learn about the Remove() method of List with example.
Submitted by IncludeHelp, on March 14, 2019

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: 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# Example 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