delphi Using records as key in TDictionary

Question

Can you use a record as a Key value in TDictionary? I want to find objects based on combination of string, integer and integer.

TUserParKey=record
  App:string;
         


        

Answer 1

Instead of using the record as a key, you could use a string consisting of the serialized record. You could use something like https://github.com/hgourvest/superobject to do the serialization.

Since strings have built-in comparison semantics and hashcodes, you don't need to write comparison and hashcode functions.