C# | Getting a subset of the elements from the source ArrayList Last Updated : 11 Jul, 2025 Comments Improve Suggest changes 1 Likes Like Report ArrayList.GetRange(Int32, Int32) Method is used to get an ArrayList which will represent a subset of the elements in the source ArrayList. Syntax: public virtual System.Collections.ArrayList GetRange (int index, int count); Parameters: index: It is of Int32 type and represents the zero-based ArrayList index at which the range starts. count: It is of Int32 type and represents the number of elements in the range. Return Value: This method returns an ArrayList which represents a subset of the elements in the source ArrayList. Exceptions: ArgumentOutOfRangeException: If the value of the index is less than zero, or if the value of count is less than zero. ArgumentException: If the value of an index and count does not denote a valid range of elements in the ArrayList. Below programs illustrate the above-discussed method: Example 1: CSharp // C# program to illustrate the // concept of GetRange() Method using System; using System.Collections; class GFG { // Main method public static void Main() { // Creates and initializes // a new ArrayList. ArrayList myarraylist = new ArrayList(); myarraylist.Add("Welcome"); myarraylist.Add("to"); myarraylist.Add("Geeks"); myarraylist.Add("for"); myarraylist.Add("Geeks"); myarraylist.Add("portal"); // Creates and initializes queue Queue mynewList = new Queue(); mynewList.Enqueue("This"); mynewList.Enqueue("is"); mynewList.Enqueue("C#"); mynewList.Enqueue("tutorial"); // Displays the values of six // elements starting at index 0. ArrayList newarraylist = myarraylist.GetRange(0, 6); Console.WriteLine("Elements are:"); Displaydata(newarraylist, '\n'); // Replaces the values of six elements // starting at index 1 with the values // in the queue. myarraylist.SetRange(2, mynewList); // Displays the values of six // elements starting at index 0. newarraylist = myarraylist.GetRange(0, 6); Console.WriteLine("\nNow elements are:"); Displaydata(newarraylist, '\n'); } public static void Displaydata(IEnumerable myvalueList, char mySeparator) { foreach(Object obj in myvalueList) Console.Write("{0}{1}", mySeparator, obj); Console.WriteLine(); } } Output: Elements are: Welcome to Geeks for Geeks portal Now elements are: Welcome to This is C# tutorial Example 2: CSharp // C# program to illustrate the // concept of GetRange() Method using System; using System.Collections; class GFG { // Main method public static void Main() { // Creates and initializes a new ArrayList. ArrayList myarraylist = new ArrayList(); myarraylist.Add("Welcome"); myarraylist.Add("to"); myarraylist.Add("Geeks"); myarraylist.Add("for"); myarraylist.Add("Geeks"); myarraylist.Add("portal"); // Creates and initializes queue Queue mynewList = new Queue(); mynewList.Enqueue("This"); mynewList.Enqueue("is"); mynewList.Enqueue("C#"); mynewList.Enqueue("tutorial"); // Displays the values of six elements ArrayList newarraylist = myarraylist.GetRange(-1, 6); Console.WriteLine("Elements are:"); Displaydata(newarraylist, '\n'); // Replaces the values of six elements // starting at index 1 with the // values in the queue. myarraylist.SetRange(2, mynewList); // Displays the values of six // elements starting at index 0. newarraylist = myarraylist.GetRange(0, 6); Console.WriteLine("Now elements are:"); Displaydata(newarraylist, '\n'); } public static void Displaydata(IEnumerable myvalueList, char mySeparator) { foreach(Object obj in myvalueList) Console.Write("{0}{1}", mySeparator, obj); Console.WriteLine(); } } Runtime Error: Unhandled Exception: System.ArgumentOutOfRangeException: Non-negative number required. Parameter name: index Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.arraylist.getrange?view=netframework-4.7.2#System_Collections_ArrayList_GetRange_System_Int32_System_Int32_ Create Quiz Comment A ankita_saini Follow 1 Improve A ankita_saini Follow 1 Improve Article Tags : C# CSharp-method CSharp-Collections-Namespace CSharp-Collections-ArrayList Explore IntroductionC# Tutorial 2 min read Introduction to .NET Framework 6 min read C# .NET Framework (Basic Architecture and Component Stack) 6 min read C# Hello World 2 min read Common Language Runtime (CLR) in C# 4 min read FundamentalsC# Identifiers 2 min read Data Types in C# 6 min read C# Variables 4 min read C# Literals 5 min read Operators in C# 7 min read C# Keywords 5 min read Control StatementsC# Decision Making (if, if-else, if-else-if ladder, nested if, switch, nested switch) 5 min read C# Switch Statement 4 min read Loops in C# 4 min read C# Jump Statements (Break, Continue, Goto, Return and Throw) 4 min read OOP ConceptsClass and Objects in C# 4 min read Constructors in C# 5 min read C# Inheritance 3 min read Encapsulation in C# 2 min read C# Abstraction 4 min read MethodsMethods in C# 4 min read Method Overloading in C# 4 min read Method Parameters in C# 4 min read Method Overriding in C# 7 min read Anonymous Method in C# 2 min read ArraysArrays in C# 6 min read Jagged Arrays in C# 4 min read Array Class in C# 5 min read How to Sort an Array in C# | Array.Sort() Method Set - 1 8 min read How to find the rank of an array in C# 2 min read ArrayListArrayList in C# 6 min read ArrayList Class in C# 4 min read C# | Array vs ArrayList 2 min read StringStrings in C# 6 min read C# Verbatim String Literal - @ 5 min read C# String Class 9 min read C# StringBuilder 2 min read C# String vs StringBuilder 3 min read TupleC# Tuple 7 min read C# Tuple Class 3 min read C# ValueTuple 7 min read C# ValueTuple Struct 4 min read IndexersC# Indexers 5 min read C# Multidimensional Indexers 5 min read C# - Overloading of Indexers 3 min read Like