About Map Type Lists
Map Type lists, also known as maps, can be used to store pairs of keys and values mapped to each other. Both the keys and their values are of the string type.
Lookup operations can be performed on existing maps, for example, to find out whether a particular key exists in a map or what value is mapped to a key.
Other operations include setting and deleting values for a particular key or converting a complete map into a single string.
You can create and fill Map Type lists on the user interface of Web Gateway or retrieve them from a remote location using the external lists and subscribed lists functions.
If you want to work with other data types for your maps, for example, numbers or IP addresses, you can convert them using properties such as Number.ToString or IP.ToString.