how to add list in list in c# code example

Example 1: how to add to a list c#

var list = new List<string>();
list.Add("Hello");

Example 2: c# add list to list

List<string> initialList = new List<string>();
// Put whatever you want in the initial list
List<string> listToAdd = new List<string>();
// Put whatever you want in the second list
initialList.AddRange(listToAdd);