I want to create a data store to allow me to store some data.
The first idea was to create a dictionary where you have one key with many values, so a bit like a one-to-many relationship.
I think the dictionary only has one key value.
How else could I store this information?
You can have a dictionary with a collection (or any other type/class) as a value. That way you have a single key and you store the values in your collection.