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 in a better way: Example 1: Output:

Count : 5
A
B
C
D
E

Example 2:

Output:

Count : 4
2
3
4
5

Note: Retrieving the value of this property is an O(1) operation. Reference:

• https://learn.microsoft.com/en-us/dotnet/api/system.collections.objectmodel.collection-1.count?view=netframework-4.7.2