Used to a store a combination of a key and value pair for a variety of purposes including primary/foreign keys.
Construct a new instance by optionally providing a field name and value. This is useful for creating a key value pair on the fly without needing to set the properties manually.
Optional
Field name of the key value pair
Value of the key value pair
Used to a store a combination of a key and value pair for a variety of purposes including primary/foreign keys.