THTTPDataLink Members

The following tables list the members exposed by THTTPDataLink.

	Name	Description
	ActiveChanged	Informs the table producer when the Active property changes.
	AssignTo	Copies the properties of an object to a destination object.
	CheckBrowseMode	Allows the data-aware object to respond just before an event that changes the dataset state.
	DataEvent	Responds to various events that occur while working with data.
	DataSetChanged	Informs the associated table producer of changes to the dataset.
	DataSetScrolled	Ignores scrolling events on the dataset.
	DefineProperties	Provides an interface for a method that reads and writes otherwise unpublished data.
	EditingChanged	Ignores changes to the editing state of the dataset.
	FocusControl	Discards requests to set focus to the indicated field.
	GetActiveRecord	This is GetActiveRecord, a member of class TDataLink.
	GetBOF	This is GetBOF, a member of class TDataLink.
	GetBufferCount	This is GetBufferCount, a member of class TDataLink.
	GetEOF	This is GetEOF, a member of class TDataLink.
	GetMappedIndex	Returns the index of the field component in the dataset that corresponds to the index of the field component within the Fields array.
	GetOwner	Returns the owner of an object.
	GetRecordCount	This is GetRecordCount, a member of class TDataLink.
	LayoutChanged	Informs TDSTableProducer of changes in the layout of columns at design time.
	MoveBy	Repositions the dataset to another record relative to its active record.
	RecordChanged	Ignores changes to the contents of the current record or field of the data source.
	SetActiveRecord	This is SetActiveRecord, a member of class TDataLink.
	SetBufferCount	This is SetBufferCount, a member of class TDataLink.
	UpdateData	Discards requests to post changes to the dataset.

Protected Properties

	Name	Description
	VisualControl	Indicates whether a visual control uses the datalink.

Public Methods

	Name	Description
	AddMapping	Adds a field component to the end of the Fields array.
	AfterConstruction	Responds after the last constructor has executed.
	Assign	Copies the contents of another, similar object.
	BeforeDestruction	Responds before the first destructor executes.
	ClassInfo	Returns a pointer to the runtime type information (RTTI) table for the object type.
	ClassName	Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument).
	ClassNameIs	Determines whether an object is of a specific type.
	ClassParent	Returns the type of the immediate ancestor of a class.
	ClassType	Returns the class reference for the object's class.
	CleanupInstance	Performs finalization on long strings, variants, and interface variables within a class.
	ClearMapping	Empties the Fields array and frees any associated memory.
	Create	Creates an instance of THTTPDataLink.
	DefaultHandler	Provides the interface for a method that processes message records.
	Destroy	Destroys an instance of THTTPDataLink.
	Dispatch	Calls message-handling methods for the object, based on the contents of the Message parameter.
	Edit	Attempts to drive the data source into an editing state if it is not already in one.
	Equals	Checks if the current instance and the parameter are equal.
	ExecuteAction	Invokes an action with the datasource as its target.
	FieldAddress	This is the overview for the FieldAddress method overload.
	Free	Destroys an object and frees its associated memory, if necessary.
	FreeInstance	Deallocates memory allocated by a previous call to the System::TObject::NewInstance method.
	GetHashCode	Returns an integer containing the hash code.
	GetInterface	Retrieves a specified interface.
	GetInterfaceEntry	Returns the entry for a specific interface implemented in a class.
	GetInterfaceTable	Returns a pointer to a structure containing all of the interfaces implemented by a given class.
	GetNamePath	Returns the name of the object as it appears in the Object Inspector.
	InheritsFrom	Determines the relationship of two object types.
	InitInstance	Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer.
	InstanceSize	Returns the size in bytes of each instance of the object type.
	MethodAddress	This is the overview for the MethodAddress method overload.
	MethodName	Returns the name of a class method by address.
	Modified	Tracks changes to the data which have not been written to the current record in the database.
	NewInstance	Allocates memory for an instance of an object type and returns a pointer to that new instance.
	Reset	Cancels any pending edits to the dataset that have not been written to the current record in the database.
	SafeCallException	Handles exceptions in methods declared using the safecall calling convention.
	ToString	Returns a string containing the class name.
	UnitName	Returns a string containing the unit name.
	UpdateAction	Updates an action to reflect the current state of the TDataLink.
	UpdateRecord	Responds to notifications that edits should be posted to the dataset.

Public Properties

	Name	Description
	Active	Specifies whether the dataset that TDataLink manages is active.
	ActiveRecord	Specifies the index of the current record within the internal record buffer maintained by the dataset for the Owner of the TDataLink object.
	BOF	Indicates whether the first record in a dataset is active.
	BufferCount	Specifies the number of records cached by the dataset for the Owner of the TDataLink object.
	DataSet	Specifies the TDataSet object that represents the data that this TDataLink is tracking.
	DataSource	Specifies the TDataSource object that the Owner of the TDataLink uses to connect to the dataset.
	DataSourceFixed	Indicates whether the DataSource property can be set.
	DefaultFields	Indicates whether the associated table producer uses dynamically generated field components.
	Editing	Indicates whether the DataSource is in edit mode.
	Eof	Indicates whether the last record in a dataset is active.
	FieldCount	Specifies the number of entries in the Fields array.
	Fields	Lists all the field components from the dataset that may be shown in the image of the datasource.
	ReadOnly	Indicates whether the dataset for this TDataLink can be modified.
	RecordCount	Indicates the number of records in the internal record buffer maintained by the dataset.
	SparseMap	Indicates whether the associated table producer has customized the number or order of the fields that appear in the table.

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