Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to insert an item into a C# list by using an index?
Firstly, set a list −
List<int> list = new List<int>(); list.Add(456); list.Add(321); list.Add(123); list.Add(877); list.Add(588); list.Add(459);
Now, to add an item at index 5, let say; for that, use the Insert() method −
list.Insert(5, 999);
Let us see the complete example −
Example
using System;
using System.Collections.Generic;
namespace Demo {
public class Program {
public static void Main(string[] args) {
List<int> list = new List<int>();
list.Add(456);
list.Add(321);
list.Add(123);
list.Add(877);
list.Add(588);
list.Add(459);
Console.Write("List: ");
foreach (int i in list) {
Console.Write(i + " ");
}
Console.WriteLine("
Count: {0}", list.Count);
// inserting element at index 5
list.Insert(5, 999);
Console.Write("
List after inserting a new element: ");
foreach (int i in list) {
Console.Write(i + " ");
}
Console.WriteLine("
Count: {0}", list.Count);
}
}
}
Updated on: 22-Jun-2020
2K+ Views
Advertisements