| AreaContainer | 
 Implement functionality behind the XFA area object. 
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| Container | 
 A base class to represent all XFA objects that are containers. 
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| Container.FormInfo | 
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| ContainerScript | 
 This class contains all the script functionality associated with the
 Container class. 
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| ContentArea | 
 An element that describes a region within a page eligible for receiving
 content. 
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| Draw | 
 A class to represent the XFA draw object. 
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| DrawScript | 
 This class contains all the script functionality associated with the
 Draw class. 
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| ExclGroup | 
 ExclGroup elements are like 'transparent' abstract containers. 
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| ExclGroupScript | 
 This class contains all the script functionality associated with the
 ExclGroup class. 
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| Field | 
 A class to represent the XFA field object. 
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| Field.ItemPair | 
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| FieldScript | 
 This class contains all the script functionality associated with the
 Field class. 
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| PageArea | 
Functionality represented by the XFA   element. 
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| PageSet | 
 An element that describes an ordered set of pageArea/child pageSet objects. 
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| Rotate | 
 An attribute that describes the rotation of a container, i.e., a value in
 degrees progressing counterclockwise. 
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| Subform | 
 A class to represent the XFA subform object. 
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| SubformScript | 
 This class contains all the script functionality associated with the
 Subform class. 
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| SubformSet | 
 An element that describes a set of related subform objects. 
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| SubformSetScript | 
 This class contains all the script functionality associated with the
 SubformSet class. 
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| Variables | 
 functionality represented by the XFA  element. 
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