TADMapRule represents a maintained client view to records in an AnyDAC dataset...
Use TADMapRule to create and maintain data type mapping rule.
TADMapRule are collected into TADMapRules collection. The set of TADMapRule may be created as at design time, as at run time.
A map rules collection is used by TADFormatOptions.MapRules.
TADMapRule = class(TCollectionItem);