Can we have same key value pair in Hashtable?

Question

I want to implement the encryption and that to only to value in key-value pair in mongodb .Can anyone please provide a workable solution?

Answer 1

The hashtable key must be unique: you can't add the same key twice into it. You may use List or HashSet where T is the key-value pair of your class (or use the .net KeyValuePair class) or the Dictionary class where V the list or set but you'll still need to manage the duplicate key insertion manually.