ListmyList = new List { 1, 2, 3 }; List newList = new List { 4, 5, 6 }; myList.AddRange(newList);
ArrayList myArrayList = new ArrayList(){ "Hello", "World" }; Array stringArray = new string[] { "Goodbye", "World" }; myArrayList.AddRange(stringArray);This code snippet creates an ArrayList containing strings "Hello" and "World". It then creates a string array with elements "Goodbye" and "World". Finally, it uses AddRange method to add stringArray elements to myArrayList, resulting in myArrayList containing elements "Hello", "World", and "Goodbye". The Handle.AddRange method most likely belongs to the System.Collections.Generic namespace.