C# | Remove all elements from the SortedSet Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report SortedSet class represents the collection of objects in sorted order. This class comes under the System.Collections.Generic namespace. SortedSet<T>.Clear Method is used to remove the all elements from the SortedSet. Properties: In C#, SortedSet class can be used to store, remove or view elements. It maintains ascending order and does not store duplicate elements. It is suggested to use SortedSet class if you have to store unique elements and maintain ascending order. Syntax: mySortedSet.Clear(); Here, mySortedSet is the name of the SortedSet. Below given are some examples to understand the implementation in a better way: Example 1: CSHARP // C# code to remove all the elements // from SortedSet using System; using System.Collections.Generic; class GFG { // Driver code public static void Main() { // Creating a SortedSet of strings SortedSet<string> mySortedSet = new SortedSet<string>(); // adding elements in mySortedSet mySortedSet.Add("A"); mySortedSet.Add("B"); mySortedSet.Add("C"); mySortedSet.Add("D"); mySortedSet.Add("E"); // Displaying number of elements in mySortedSet // before Removing all the elements Console.WriteLine("Number of elements in mySortedSet are : " + mySortedSet.Count); // Displaying the element in mySortedSet foreach(string str in mySortedSet) { Console.WriteLine(str); } // Removing all the elements from mySortedSet mySortedSet.Clear(); // Displaying number of elements in mySortedSet // after Removing all the elements Console.WriteLine("Number of elements in mySortedSet are : " + mySortedSet.Count); } } Output: Number of elements in mySortedSet are : 5 A B C D E Number of elements in mySortedSet are : 0 Example 2: CSHARP // C# code to remove all the elements // from SortedSet using System; using System.Collections.Generic; class GFG { // Driver code public static void Main() { // Creating a SortedSet of integers SortedSet<int> mySortedSet = new SortedSet<int>(); // adding elements in mySortedSet for (int i = 1; i <= 6; i++) { mySortedSet.Add(2 * i + 1); } // Displaying number of elements in mySortedSet // before Removing all the elements Console.WriteLine("Number of elements in mySortedSet are : " + mySortedSet.Count); // Displaying the element in mySortedSet foreach(int i in mySortedSet) { Console.WriteLine(i); } // Removing all the elements from mySortedSet mySortedSet.Clear(); // Displaying number of elements in mySortedSet // after Removing all the elements Console.WriteLine("Number of elements in mySortedSet are : " + mySortedSet.Count); } } Output: Number of elements in mySortedSet are : 6 3 5 7 9 11 13 Number of elements in mySortedSet are : 0 Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.sortedset-1.clear?view=netcore-2.1 Create Quiz Comment S Sahil_Bansall Follow 0 Improve S Sahil_Bansall Follow 0 Improve Article Tags : Misc C# CSharp-method CSharp-Generic-SortedSet CSharp-Generic-Namespace +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