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Insert an element into Collection at specified index in C#
To insert an element into Collection at the specified index, the code is as follows −
Example
using System; using System.Collections.ObjectModel; public class Demo { public static void Main(){ Collection<string> col = new Collection<string>(); col.Add("Laptop"); col.Add("Desktop"); col.Add("Notebook"); col.Add("Ultrabook"); col.Add("Tablet"); col.Add("Headphone"); col.Add("Speaker"); Console.WriteLine("Elements in Collection..."); foreach(string str in col){ Console.WriteLine(str); } Console.WriteLine("Element at index 3 = " + col[3]); Console.WriteLine("Element at index 4 = " + col[4]); col.Insert(5, "Alienware"); Console.WriteLine("Elements in Collection...UPDATED"); foreach(string str in col){ Console.WriteLine(str); } } }
Output
This will produce the following output −
Elements in Collection... Laptop Desktop Notebook Ultrabook Tablet Headphone Speaker Element at index 3 = Ultrabook Element at index 4 = Tablet Elements in Collection...UPDATED Laptop Desktop Notebook Ultrabook Tablet Alienware Headphone Speaker
Example
Let us now see another example −
using System; using System.Collections.ObjectModel; public class Demo { public static void Main(){ Collection<string> col = new Collection<string>(); col.Add("Andy"); col.Add("Kevin"); col.Add("John"); col.Add("Kevin"); col.Add("Mary"); col.Add("Katie"); col.Add("Barry"); col.Add("Nathan"); Console.WriteLine("Elements in Collection..."); foreach(string str in col){ Console.WriteLine(str); } col.Insert(3, "Jacob"); Console.WriteLine("Elements in Collection...UPDATED"); foreach(string str in col){ Console.WriteLine(str); } } }
Output
This will produce the following output −
Elements in Collection... Andy Kevin John Kevin Mary Katie Barry Nathan Elements in Collection...UPDATED Andy Kevin John Jacob Kevin Mary Katie Barry Nathan
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