Class T3DSparseStringArray

Unit

SparseDataSets

Declaration

type T3DSparseStringArray = class(T3DSparsePointerArray)

Description

T3DSparseStringArray acts like a 3D array of strings. It provides constant time access to its elements through the its Items property. However, when many of the elements are unassigned, it can use much less memory than an array.

Hierarchy

• TObject
• T3DSparsePointerArray
• T3DSparseStringArray

Overview

Fields

	FCount: NativeInt;
	FValues: array of string;

Methods

	function GetItems(const Layer, Row, Col: NativeInt): string;
	procedure SetItems(const Layer, Row, Col: NativeInt; const Value: string);
	procedure Clear; override;
	constructor Create(Quantum: TSPAQuantum);

Properties

property Items[constLayer,Row,Col:NativeInt]: string read GetItems write SetItems;

Description

Fields

	FCount: NativeInt;
FCount is the number of strings stored in T3DSparseStringArray.

	FValues: array of string;
FValues is an array of strings stored in T3DSparseStringArray

Methods

	function GetItems(const Layer, Row, Col: NativeInt): string;
See Items.

	procedure SetItems(const Layer, Row, Col: NativeInt; const Value: string);
See Items.

	procedure Clear; override;
Clear removes all the members of T3DSparseStringArray.

	constructor Create(Quantum: TSPAQuantum);
Create creates an instance of T3DSparseStringArray.

Properties

	property Items[constLayer,Row,Col:NativeInt]: string read GetItems write SetItems;
Items provides access to the string stored at location Layer, Row, Col. Before reading Items, read IsValue to be sure that a string is stored at Layer, Row, Col.