From Xojo Documentation
Adds a new key-value pair to the Dictionary. If there is already an entry with the specified key, its value is altered and no exception is raised.
Returns the value associated with the specified key. If there is no such entry, a KeyNotFoundException is raised.
KeyNotFoundException when attempting to get a key that is not in the Dictionary.
As this is an assignment method, you use it with the assignment operator.
More Dictionary usage:
If the Dictionary contains an array, you can iterate through by first assigning the value to an Auto array and then using the correct type in a For...Each loop. For example, this code gets an array of Dictionaries: