C# | Add a string to the end of the StringCollection Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report StringCollection class is a new addition to the .NET Framework class library that represents a collection of strings. StringCollection class is defined in the System.Collections.Specialized namespace. StringCollection.Add(String) Method is used to add a string to the end of the StringCollection. Syntax: public int Add (string value); Here, value is the string to add to the end of the StringCollection. The value can be null. Return Value: The zero-based index at which the new element is inserted. Note: If Count is less than the capacity, this method is an O(1) operation. If the capacity needs to be increased to accommodate the new element, this method becomes an O(n) operation, where n is Count. Below programs illustrate the use of StringCollection.Add(String) Method: Example 1: CSHARP // C# code to add a string to the // end of the StringCollection using System; using System.Collections; using System.Collections.Specialized; class GFG { // Driver code public static void Main() { // creating a StringCollection named myCol StringCollection myCol = new StringCollection(); // Adding elements in StringCollection myCol.Add("A"); myCol.Add("B"); myCol.Add("C"); myCol.Add("D"); myCol.Add("E"); // Displaying objects in myCol foreach(Object obj in myCol) { Console.WriteLine(obj); } } } Output: A B C D E Example 2: CSHARP // C# code to add a string to the // end of the StringCollection using System; using System.Collections; using System.Collections.Specialized; class GFG { // Driver code public static void Main() { // creating a StringCollection named myCol StringCollection myCol = new StringCollection(); // Adding elements in StringCollection myCol.Add("2"); myCol.Add("4"); myCol.Add("6"); myCol.Add("8"); myCol.Add("10"); // Displaying objects in myCol foreach(Object obj in myCol) { Console.WriteLine(obj); } } } Output: 2 4 6 8 10 Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.specialized.stringcollection.add?view=netframework-4.7.2 Create Quiz Comment S Sahil_Bansall Follow 0 Improve S Sahil_Bansall Follow 0 Improve Article Tags : C# CSharp-method CSharp-Collections-Namespace CSharp-Specialized-Namespace CSharp-Specialized-StringCollection +1 More 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