C# | Gets an ICollection containing the keys in the Hashtable

Hashtable.Keys Property is used to get an ICollection containing the keys in the Hashtable. Syntax:

public virtual System.Collections.ICollection Keys { get; }

Return Value: This property returns an ICollection containing the keys in the Hashtable. Note:

• The order of keys in the ICollection is unspecified.
• Retrieving the value of this property is an O(1) operation.

Below programs illustrate the use of above-discussed property: Example 1: Example 2:

Reference:

• https://learn.microsoft.com/en-us/dotnet/api/system.collections.hashtable.keys?view=netframework-4.7.2