DataSource

Namespace: PP;

Inheritance hierarchy

DataSource

Description

The DataSource class is a basic class used to work with visual components data source.

Syntax

PP.initClass(PP.DataSource, PP.Object, "PP.DataSource");

Constructor

	Constructor name	Brief description
	DataSource	The DataSource constructor creates an instance of the DataSource class.

Properties

	Property name	Brief description
	AttributeName	The AttributeName property determines and returns attribute name by its identifier.
	AttributesNames	The AttributesNames property sets the object that contains names of data source attributes.
	Data	The Data property determines and returns data for the selected element of the specified series.
	ItemName	The ItemName property determines and returns series name by its identifier.
	ItemNames	The ItemNames property sets the object that contains names of data source elements.
	Title	The Title property sets chart or map title.

Methods

	Method name	Brief description
	add	The add method adds data for the specified series attribute.
	clear	The clear method clears data source.
	getAttributeData	The getAttributeData method returns array of all series values by a single attribute.
	getFirstNotNullData	The getFirstNotNullData method returns the first non-empty value of the specified attribute.
	getMaxIndexData	The getMaxIndexData method returns maximum number of elements by all attributes.
	getSeries	The getSeries method returns data series.
	getSeriesCount	The getSeriesCount method returns the number of series in a data source.
	getTimeAxis	The getTimeAxis method returns data for the specified series attribute.
	hasItem	The hasItem method determines whether data of the series with the specified identifier is available.
	isIndexLoaded	The isIndexLoaded method determines whether data for element with the specified index is loaded.
	loadData	The loadData method loads additional data to a source.
	remove	The remove method removes data for the specified series attribute.

Events

	Event name	Brief description
	DataChanged	The DataChanged event occurs when data in the source is changed.

Properties inherited from the class Object

	Property name	Brief description
	Id	The Id property determines a repository object identifier.

Methods inherited from the class Object

	Method name	Brief description
	clone	The clone method creates an object copy.
	dispose	The dispose method deletes the component.
	getHashCode	The getHashCode method returns hash code of repository object.
	getId	The getId method returns repository object identifier.
	getSettings	The getSettings method returns repository object settings.
	getTypeName	The getTypeName method returns the name of the object type without the namespace, to which it belongs.
	isEqual	The isEqual method determines whether the specified object is equal to the current repository object.
	isLive	The isLive method determines validity of repository object.
	removeAllEvents	The removeAllEvents method removes all object event handlers by the specified context.
	setId	The setId method determines a repository object identifier.
	setSettings	The setSettings method determines repository object settings.
	defineProps	The defineProps method creates get and set methods from name array for the specified class.
	keys	The keys method returns array of methods and properties names for the specified object.

See also: