Name 

Description 

 

Collection 

Specifies the TCollection instance to which the TCollectionItem belongs. 

 

DisplayName 

The name displayed in the Collection editor. 

 

FieldClass 

Determines the class of the field object that corresponds to this field definition object. 

 

FieldNo 

Identifies the physical field number used to reference the field. 

 

ID 

A unique, permanent index for the item. 

 

Index 

Returns the item's position in the Items array of TCollection. 

 

InternalCalcField 

Determines if the field is calculated by the underlying database. 

 

ParentDef 

The ParentDef property references the parent field definition for the field definition, if it exists. 

 

Required 

Indicates whether a value for the physical field in the underlying table is required.