Package | spark.collections |
Class | public class NumericDataProvider |
Inheritance | NumericDataProvider ![]() ![]() |
Implements | IList |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 4.6 |
Runtime Versions: | Flash Player 11, AIR 3 |
minimum
and maximum
properties. The stepSize
property defines the difference between
an item and the next item.
This class is used primarily as a data provider for the SpinnerList control; for example:
<s:SpinnerList> <s:dataProvider> <s:NumericDataProvider minimum="0" maximum="23" stepSize="1"/> </s:dataProvider> </s:SpinnerList>
The advantage of this class is that the item values are calculated on demand, instead of stored.
Because the values are calculated instead of stored, the addItem()
, addItemAt()
,
removeAll()
, removeItemAt()
, itemUpdated()
and setItemAt()
IList methods are not
supported.
Related API Elements
Property | Defined By | ||
---|---|---|---|
![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object |
Method | Defined By | ||
---|---|---|---|
Returns the index of the item if it is in the list such that
getItemAt(index) == item. | NumericDataProvider | ||
![]() |
Indicates whether an object has a specified property defined. | Object | |
![]() |
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
![]() |
Indicates whether the specified property exists and is enumerable. | Object | |
![]() |
Sets the availability of a dynamic property for loop operations. | Object | |
![]() |
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
![]() |
Returns the string representation of the specified object. | Object | |
![]() |
Returns the primitive value of the specified object. | Object |
getItemIndex | () | method |
public function getItemIndex(item:Object):int
Returns the index of the item if it is in the list such that getItemAt(index) == item.
Note: unlike IViewCursor.findxxx()
methods,
The getItemIndex()
method cannot take a parameter with
only a subset of the fields in the item being serched for;
this method always searches for an item that exactly matches
the input parameter.
Parameters
item:Object — The item to find.
|
int — The index of the item, or -1 if the item is not in the list.
|
Wed Nov 21 2018, 06:34 AM -08:00