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How to insert the elements of a collection into the List at the specified index in C#?
To insert the elements of a collection into the List at the specified index, the code is as follows −
Example
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(String[] args){
string[] strArr = { "John", "Tom", "Kevin", "Mark", "Gary" };
List<string> list = new List<string>(strArr);
Console.WriteLine("Elements in a List...");
foreach(string str in list){
Console.WriteLine(str);
}
strArr = new string[] { "Demo", "Text" };
Console.WriteLine("Inserted new elements in a range...");
list.InsertRange(3, strArr);
foreach(string res in list){
Console.WriteLine(res);
}
}
}Output
This will produce the following output −
Elements in a List... John Tom Kevin Mark Gary Inserted new elements in a range... John Tom Kevin Demo Text Mark Gary
Example
Let us now see another example −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(String[] args){
int[] intArr = { 10, 20, 30, 40, 50 };
List<int> list = new List<int>(intArr);
Console.WriteLine("Elements in a List...");
foreach(int i in list){
Console.WriteLine(i);
}
intArr = new int[] { 300, 400, 500};
Console.WriteLine("Inserted new elements in a range...");
list.InsertRange(2, intArr);
foreach(int res in list){
Console.WriteLine(res);
}
}
}Output
This will produce the following output −
Elements in a List... 10 20 30 40 50 Inserted new elements in a range... 10 20 300 400 500 30 40 50
Updated on 10-Dec-2019 12:27:32
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