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How to append a second list to an existing list in C#?
Use the AddRange() method to append a second list to an existing list.
Here is list one −
List < string > list1 = new List < string > ();
list1.Add("One");
list1.Add("Two");Here is list two −
List < string > list2 = new List < string > ();
list2.Add("Three");
ist2.Add("Four");Now let us append −
list1.AddRange(list2);
Let us see the complete code.
Example
using System;
using System.Collections.Generic;
using System.Linq;
public class Demo {
public static void Main() {
List < string > list1 = new List < string > ();
list1.Add("One");
list1.Add("Two");
Console.WriteLine("First list...");
foreach(string value in list1) {
Console.WriteLine(value);
}
Console.WriteLine("Second list...");
List < string > list2 = new List < string > ();
list2.Add("Three");
list2.Add("Four");
foreach(string value in list2) {
Console.WriteLine(value);
}
Console.WriteLine("After Append...");
list1.AddRange(list2);
foreach(string value in list1) {
Console.WriteLine(value);
}
}
}
Updated on: 21-Jun-2020
19K+ Views
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