Skip to content

Courses
Tutorials
Practice
Contests

C# Data Types
C# Decision Making
C# Methods
C# Delegates
C# Constructors
C# Arrays
C# ArrayList
C# String
C# Tuple
C# Indexers
C# Interface
C# Multithreading
C# Exception

C# | Get the number of elements contained in SortedList

C# | Count the total number of elements in the List

Last Updated : 01 Feb, 2019

Comments

Improve

Suggest changes

Like Article

Like

Report

List class represents the list of objects which can be accessed by index. It comes under the System.Collection.Generic namespace. List class can be used to create a collection of different types like integers, strings etc. List class also provides the methods to search, sort, and manipulate lists. List.Count Property is used to get the total number of elements contained in the List.

Properties:

It is different from the arrays. A list can be resized dynamically but arrays cannot be.
List class can accept null as a valid value for reference types and it also allows duplicate elements.
If the Count becomes equals to Capacity then the capacity of the List increases automatically by reallocating the internal array. The existing elements will be copied to the new array before the addition of the new element.

Syntax:

list_name.Count

Below programs illustrate the use of Count property:

Example 1:

   // C# code to get the number of 
// elements contained in List 
using System; 
using System.Collections.Generic; 
  
class Geeks { 
  
    // Main Method 
    public static void Main() 
    { 
  
        // Creating a List of integers 
        List<int> firstlist = new List<int>(); 
  
        // adding elements in firstlist 
        for (int i = 4; i < 10; i++) { 
            firstlist.Add(i * 2); 
        } 
  
        // To get the number of 
        // elements in the List 
        Console.WriteLine(firstlist.Count); 
    } 
} 
 
  

Output:

Example 2:

   // C# code to get the number of 
// elements contained in List 
using System; 
using System.Collections.Generic; 
  
class Geeks { 
  
    // Main Method 
    public static void Main() 
    { 
  
        // Creating a List of integers 
        List<int> firstlist = new List<int>(); 
  
        // To get the number of 
        // elements in the List 
        Console.WriteLine(firstlist.Count); 
    } 
} 
 
  

Output:

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1.count?view=netframework-4.7.2

C# | Get the number of elements contained in SortedList

K

Kirti_Mangal

Improve

Article Tags :

C#
CSharp-Collections-Namespace
CSharp-Generic-List
CSharp-Generic-Namespace

Similar Reads

C# | Get the number of elements contained in the Stack

Stack represents a last-in, first out collection of object. Stack<T>.Count Property is used to gets the number of elements contained in the Stack. Retrieving the value of this property is an O(1) operation. Syntax: myStack.Count Here myStack is the name of the Stack<T> Return Value: The

C# | Get the number of elements contained in the Queue

Queue represents a first-in, first out collection of object. It is used when you need a first-in, first-out access of items. When you add an item in the list, it is called enqueue, and when you remove an item, it is called deque. Queue.Count Property is used to get the number of elements contained i

Count the number of element present in the sequence in LINQ?

In LINQ, you can count the total number of elements present in the given sequence by using the Count Method. This method returns the total number of elements present in the given sequence. This method can be overloaded in two different ways: Count<TSource>(): This method returns the total numb

C# | Get the number of elements contained in SortedList

SortedList.Count Property is used to get the number of elements contained in a SortedList object. Syntax: public virtual int Count { get; } Property Value: The number of elements contained in the SortedList object. Below programs illustrate the use of above discussed method: Example 1: // C# Program

C# | Total number of elements present in an array

Array.GetLength(Int32) Method is used to find the total number of elements present in the specified dimension of the Array. Syntax: public int GetLength (int dimension); Here, dimension is a zero-based dimension of the Array whose length needs to be determined.Return value: The return type of this m

C# | Get the number of elements in the SortedSet

SortedSet class represents the collection of objects in sorted order. This class comes under the System.Collections.Generic namespace. SortedSet<T>.Count Property is used to get the number of elements in the SortedSet. Properties: In C#, SortedSet class can be used to store, remove or view elemen

C# | Get the number of elements contained in Collection<T>

Collection<T>.Count property is used to get the number of elements actually contained in the Collection<T>. Syntax: public int Count { get; } Return Value: The number of elements actually contained in the Collection<T>. Below given are some examples to understand the implementation

C# | Count the number of key/value pairs in the Hashtable

The Hashtable class represents a collection of key-and-value pairs that are organized based on the hash code of the key. The key is used to access the items in the collection. Hashtable.Count Property is used to get the total number of the key/value pairs contained in the Hashtable. Syntax: myTable.

C# | Number of elements contained in the BitArray

The BitArray class manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on i.e, 1 and false indicates the bit is off i.e, 0. This class is contained in System.Collections namespace. BitArray.Count property is used to get the number of element

C# | Get the number of elements actually contained in the ArrayList

ArrayList represents an ordered collection of an object that can be indexed individually. It is basically an alternative to an array. It also allows dynamic memory allocation, adding, searching and sorting items in the list. ArrayList.Count property gets the number of elements actually contained in

Corporate & Communications Address:

A-143, 7th Floor, Sovereign Corporate Tower, Sector- 136, Noida, Uttar Pradesh (201305)

Registered Address:

K 061, Tower K, Gulshan Vivante Apartment, Sector 137, Noida, Gautam Buddh Nagar, Uttar Pradesh, 201305

Advertise with us

Company
About Us
Legal
Privacy Policy
In Media
Contact Us
Advertise with us
GFG Corporate Solution
Placement Training Program

Languages
Python
Java
C++
PHP
GoLang
SQL
R Language
Android Tutorial
Tutorials Archive

DSA
Data Structures
Algorithms
DSA for Beginners
Basic DSA Problems
DSA Roadmap
Top 100 DSA Interview Problems
DSA Roadmap by Sandeep Jain
All Cheat Sheets

Data Science & ML
Data Science With Python
Data Science For Beginner
Machine Learning
ML Maths
Data Visualisation
Pandas
NumPy
NLP
Deep Learning

Web Technologies
HTML
CSS
JavaScript
TypeScript
ReactJS
NextJS
Bootstrap
Web Design

Python Tutorial
Python Programming Examples
Python Projects
Python Tkinter
Python Web Scraping
OpenCV Tutorial
Python Interview Question
Django

Computer Science
Operating Systems
Computer Network
Database Management System
Software Engineering
Digital Logic Design
Engineering Maths
Software Development
Software Testing

DevOps
Git
Linux
AWS
Docker
Kubernetes
Azure
GCP
DevOps Roadmap

System Design
High Level Design
Low Level Design
UML Diagrams
Interview Guide
Design Patterns
OOAD
System Design Bootcamp
Interview Questions

Inteview Preparation
Competitive Programming
Top DS or Algo for CP
Company-Wise Recruitment Process
Company-Wise Preparation
Aptitude Preparation
Puzzles

School Subjects
Mathematics
Physics
Chemistry
Biology
Social Science
English Grammar
Commerce
World GK

GeeksforGeeks Videos
DSA
Python
Java
C++
Web Development
Data Science
CS Subjects

@GeeksforGeeks, Sanchhaya Education Private Limited, All rights reserved

We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy

Improvement

Suggest Changes

Help us improve. Share your suggestions to enhance the article. Contribute your expertise and make a difference in the GeeksforGeeks portal.

geeksforgeeks-suggest-icon

Create Improvement

Enhance the article with your expertise. Contribute to the GeeksforGeeks community and help create better learning resources for all.

geeksforgeeks-improvement-icon

Suggest Changes

min 4 words, max Words Limit:1000

Thank You!

Your suggestions are valuable to us.

What kind of Experience do you want to share?

Interview Experiences

Admission Experiences

Career Journeys

Work Experiences

Campus Experiences

Competitive Exam Experiences