Adds a map that is used for ${variable} substitution. The key values cannot have any of the characters ${} in them. When ${key} is found in any tag, it is replaced with the matching value. The key and value are not evaluated in any way, it is just a text substitution. This replace occurs before any other evaluation of a tag so the value can have ${variable} values that will then be evaluated. This call sets the map so calling it a second time replaces the map passed in the first time. The map is copied so on return changes to the passed in map will not affect the data source. You can pass in either DateTime or DateTime objects on the set call. However, when you call get, they will all be DateTimeOffset objects (the engine converts att DaleTime objects to DateTimeOffset).
Syntax
Requirements
Platforms: Windows 10, Windows NT, Windows Server
See Also