TXFANode.XMLContentKind Field
XMLContentKind: TXFAXMLContentKind;
Defaults to xckText and is meaningful for #text nodes; IsCDATA distinguishes ordinary text from CDATA within that content kind
Use AddComment and AddProcessingInstruction to create owned nontext nodes with validation and correct parent text aggregation
This field is native metadata and does not convert an element to a content node; editing it directly requires the caller to maintain the node name and its parent's text aggregation
Serializers reject malformed nontext payloads before writing their markup