A Hashtable, Dictionary, and HashSet are all data structures that store and retrieve data based on keys. However, there are some important differences between them.
![csharp-hashtable-vs-dictionary-vs-hashset](https://www.shekhali.com/wp-content/uploads/2022/12/csharp-hashtable-vs-dictionary-vs-hashset.png)
A Hashtable, Dictionary, and HashSet are all data structures that store and retrieve data based on keys. However, there are some important differences between them.