Data.DB.TFieldDefs Methods

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AddpublicCreates a new field definition object and adds it to the Items property.
Added (deprecated)protectedResponds when items are added to the collection.
AddFieldDefpublicCreates a new field definition object and adds it to the Items property of this TFieldDefs object.
AfterConstructionpublicResponds after the last constructor has executed.
AssignpublicCopies the contents of the Source collection to the current object.
AssignToprotectedCopies the properties of an object to a destination object.
BeforeDestructionpublicResponds before the first destructor executes.
BeginUpdatepublicSignals the start of an update operation.
ChangedprotectedResponds when the collection or any of its items changes.
ClassInfopublicReturns a pointer to the run-time type information (RTTI) table for the object type.
ClassNamepublicReturns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
ClassNameIspublicDetermines whether an object is of a specific type.
ClassParentpublicReturns the type of the immediate ancestor of a class.
ClassTypepublicReturns the class reference for the object's class.
CleanupInstancepublicPerforms finalization on long strings, variants, and interface variables within a class.
ClearpublicDeletes all items from the collection.
CreatepublicCreates an instance of TFieldDefs.
DefaultHandlerpublicProvides the interface for a method that processes message records.
DefinePropertiesprotectedProvides an interface for a method that reads and writes otherwise unpublished data.
DeletepublicDeletes a single item from the collection.
Deleting (deprecated)protectedResponds when items are deleted from the collection.
DispatchpublicCalls message-handling methods for the object, based on the contents of the Message parameter.
DisposeOfpublicDisposeOf forces the execution of the destructor code in an object.
DoUpdateprotectedInternally calls DefChanged.
EndUpdatepublicSignals the end of an update operation.
EqualspublicChecks whether the current instance and the Obj parameter are equal.
FieldAddresspublicReturns the address of a published object field.
FindpublicReturns a field definition, given the name of the field.
FindItemIDpublicReturns the item with the specified ID.
FreepublicDestroys an object and frees its associated memory, if necessary.
FreeInstancepublicDeallocates memory allocated by a previous call to the NewInstance method.
GetAttrprotectedReturns the name of a custom attribute that can be retrieved using the GetItemAttr method.
GetAttrCountprotectedReturns the number of custom attributes associated with items in the collection.
GetDisposedprotectedGetter for the Disposed property.
GetEnumeratorpublicReturns a TCollection enumerator.
GetHashCodepublicReturns an integer containing the hash code.
GetInterfacepublicRetrieves a specified interface.
GetInterfaceEntrypublicReturns the entry for a specific interface implemented in a class.
GetInterfaceTablepublicReturns a pointer to a structure containing all of the interfaces implemented by a given class.
GetItemprotectedReturns a specified item in the collection.
GetItemAttrprotectedReturns the value of a custom attribute assigned to one of the collection's items.
GetItemNamespublicFills a TStrings object with the names of all definitions in the list.
GetNamePathpublicReturns a string used by the Object Inspector.
IndexOfpublicFinds the index number of a definition in the Items array from its name.
InheritsFrompublicDetermines the relationship of two object types.
InitInstancepublicInitializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
InsertpublicCreates a new TCollectionItem instance and adds it to the Items array.
InstanceSizepublicReturns the size in bytes of each instance of the object type.
MethodAddresspublicReturns the address of a class method by name.
MethodNamepublicReturns the name of a class method by address.
NewInstancepublicAllocates memory for an instance of an object type and returns a pointer to that new instance.
NotifyprotectedResponds when items are added to or removed from the collection.
operator []public
OwnerpublicReturns the Owner of the collection.
QualifiedClassNamepublicReturns the qualified name of the class.
SafeCallExceptionpublicHandles exceptions in methods declared using the safecall calling convention.
SetItemprotectedCopies the properties of another item to a specified item in the collection.
ToStringpublicReturns a string containing the class name.
UnitNamepublicReturns the name of the unit where the class is defined.
UnitScopepublicReturns the class's unit scope.
UpdatepublicRefreshes the field definitions in the Items property array to reflect the current state of the physical fields underlying the dataset.
UpdateDefsprotectedUpdates the definitions collection according to the given update method.