- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Remove all elements from the Collection in C#
To remove all elements from the Collection, the code is as follows −
Example
using System; using System.Collections.ObjectModel; public class Demo { public static void Main() { Collection<int> col = new Collection<int>(); col.Add(10); col.Add(20); col.Add(30); col.Add(40); col.Add(50); col.Add(60); col.Add(70); col.Add(80); Console.WriteLine("Elements in the Collection..."); foreach(int val in col) { Console.WriteLine(val); } Console.WriteLine("Does the collection has the element 70? = "+col.Contains(70)); Console.WriteLine("Count of elements = " + col.Count); col.Clear(); Console.WriteLine("Count of elements (updated) = " + col.Count); } }
Output
This will produce the following output −
Elements in the Collection... 10 20 30 40 50 60 70 80 Does the collection has the element 70? = True Count of elements = 8 Count of elements (updated) = 0
Example
Let us see another example −
using System; using System.Collections.ObjectModel; public class Demo { public static void Main() { Collection<String> col = new Collection<String>(); col.Add("A"); col.Add("B"); col.Add("C"); col.Add("D"); col.Add("E"); Console.WriteLine("Elements in the Collection..."); foreach(String val in col) { Console.WriteLine(val); } Console.WriteLine("Does the collection has the element D? = "+(col.Contains("D"))); Console.WriteLine("Count of elements = " + col.Count); col.Clear(); Console.WriteLine("Count of elements (updated) = " + col.Count); } }
Output
This will produce the following output −
Elements in the Collection... A B C D E Does the collection has the element D? = True Count of elements = 5 Count of elements (updated) = 0
Advertisements