C# | Get the number of key/value pairs contained in ListDictionary Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report ListDictionary.Count property is used to get the number of key/value pairs contained in the ListDictionary. Syntax: public int Count { get; } Return Value : The number of key/value pairs contained in the ListDictionary. Below are the programs to illustrate the use of ListDictionary.Count property: Example 1: CSHARP // C# code to get the number // of key/value pairs contained // in the ListDictionary using System; using System.Collections; using System.Collections.Specialized; class GFG { // Driver code public static void Main() { // Creating a ListDictionary named myDict ListDictionary myDict = new ListDictionary(); // Adding key/value pairs in myDict myDict.Add("Australia", "Canberra"); myDict.Add("Belgium", "Brussels"); myDict.Add("Netherlands", "Amsterdam"); myDict.Add("China", "Beijing"); myDict.Add("Russia", "Moscow"); myDict.Add("India", "New Delhi"); // Displaying the number of key/value // pairs contained in the ListDictionary Console.WriteLine(myDict.Count); } } Output: 6 Example 2: CSHARP // C# code to get the number // of key/value pairs contained // in the ListDictionary using System; using System.Collections; using System.Collections.Specialized; class GFG { // Driver code public static void Main() { // Creating a ListDictionary named myDict ListDictionary myDict = new ListDictionary(); // Adding key/value pairs in myDict myDict.Add("I", "first"); myDict.Add("II", "second"); myDict.Add("III", "third"); myDict.Add("IV", "fourth"); myDict.Add("V", "fifth"); // Displaying the number of key/value // pairs contained in the ListDictionary Console.WriteLine(myDict.Count); } } Output: 5 Note: Retrieving the value of this property is an O(1) operation. Reference: https://learn.microsoft.com/en-us/dotnet/api/system.collections.specialized.listdictionary.count?view=netframework-4.7.2 Comment S Sahil_Bansall Follow 0 Improve S Sahil_Bansall Follow 0 Improve Article Tags : C# CSharp-Specialized-Namespace CSharp-Specialized-ListDictionary 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 4 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