C# | Adding the elements to the end of the ArrayList
ArrayList.AddRange(ICollection) Method is used to add the elements of an ICollection to the end of the ArrayList.
public virtual void AddRange (System.Collections.ICollection c);
Here, c is the ICollection whose elements should be added to the end of the ArrayList. The collection itself cannot be null, but it can contain elements that are null.
- ArgumentException: If c is null
- NotSupportedException: If the ArrayList is read-only or ArrayList has a fixed size.
Below programs illustrate the use of the above-discussed method:
Before AddRange Method A B C D E F After AddRange Method A B C D E F A B C D E F
Before AddRange Method Geeks GFG C# Tutorials After AddRange Method Geeks GFG C# Tutorials Collections Generic List
- ArrayList accepts null as a valid value and allows duplicate elements.
- The order of the elements in the ICollection is preserved in the ArrayList.