TDefCollection class

Declaration

Inheritance

1. TDefCollection
2. TOwnedCollection
3. TCollection
4. TPersistent
5. TObject

Descends from it: TFieldDefs TIndexDefs

Description

TDefCollection is a parent class for the TFieldDefs and TIndexDefs collections: It holds a set of named definitions on behalf of a TDataset component. To this end, it introduces a dataset property, and a mechanism to notify the dataset of any updates in the collection. It is supposed to hold items of class TNamedItem, so the Find method can find items by named.

Properties

Dataset	public	Dataset this collection manages definitions for.
Updated	public	Has one of the items been changed.

Methods

SetItemName	protected	Virtual method to set the name of the specified item.
create	public	Instantiate a new TDefCollection instance.
Find	public	Find an item by name.
GetItemNames	public	Return a list of all names in the collection.
IndexOf	public	Find location of item by name.

Inherited

From TOwnedCollection (1)

GetOwner

From TCollection (29)

Add Assign BeginUpdate Changed Clear Count Delete Destroy EndUpdate Exchange FindItemID GetAttr GetAttrCount GetEnumerator GetItem GetItemAttr GetNamePath Insert ItemClass Items Move Notify Owner PropName SetItem SetPropName Sort Update UpdateCount

From TPersistent (5)

AssignTo DefineProperties FPOAttachObserver FPODetachObserver FPONotifyObservers

From TObject (40)

AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance DefaultHandler DefaultHandlerStr Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName