| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!-- saved from url=(0014)about:internet --><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="stylesheet" href="../../style.css" type="text/css" media="screen"><link rel="stylesheet" href="../../print.css" type="text/css" media="print"><link rel="stylesheet" href="../../override.css" type="text/css"><meta name="keywords" content="DataItem,spark.utils.DataItem"><title>spark.utils.DataItem</title></head><body><script language="javascript" type="text/javascript" src="../../asdoc.js"></script><script language="javascript" type="text/javascript" src="../../help.js"></script><script language="javascript" type="text/javascript" src="../../cookies.js"></script><script language="javascript" type="text/javascript"><!-- |
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| </script><div xmlns:fn="http://www.w3.org/2005/xpath-functions" class="MainContent"><table class="classHeaderTable" cellpadding="0" cellspacing="0"><tr><td class="classHeaderTableLabel">Package</td><td><a href="package-detail.html" onclick="javascript:loadClassListFrame('class-list.html')">spark.utils</a></td></tr><tr><td class="classHeaderTableLabel">Class</td><td class="classSignature">public dynamic class DataItem</td></tr><tr><td class="classHeaderTableLabel">Inheritance</td><td class="inheritanceList">DataItem <img src="../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> <a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a> <img src="../../images/inherit-arrow.gif" title="Inheritance" alt="Inheritance" class="inheritArrow"> flash.utils.Proxy</td></tr></table><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version : </b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version : </b></td><td>Flex 4.5</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions : </b></td><td>Flash Player 10, AIR 2.5</td></tr></table><p></p><p></p><p></p><p></p> |
| The DataItem class represents a dynamic object with bindable properties. |
| That means the Flex data binding mechanism recognizes when properties |
| of a DataItem change at runtime. |
| For example, a Spark DataGrid item renderer relies on data binding |
| to a property of the items in the control's data provider. |
| Because of data binding, when the property changes at runtime, |
| the item renderer updates automatically. |
| |
| <p>This class is intended to be used in MXML to define object literals |
| whose properties must be bindable. |
| It's typically used to define List or |
| DataGrid data provider items within an MXML file for small applications or examples |
| with item renderers that bind to their data. |
| Non-trival applications, or any application for which performance is a concern, |
| should define a <code>[Bindable]</code> class with a fixed set of |
| strongly typed properties and use that class to define data provider items.</p> |
| |
| <p></p><br/><hr></div><a name="propertySummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Properties</div><div class="showHideLinks"><div id="hideInheritedProperty" class="hideInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(false,'Property');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Public Properties</a></div><div id="showInheritedProperty" class="showInheritedProperty"><a class="showHideLink" href="#propertySummary" onclick="javascript:setInheritedVisible(true,'Property');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Public Properties</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable hideInheritedProperty" id="summaryTableProperty"><tr><th> </th><th colspan="2">Property</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#uid" class="signatureLink">uid</a> : String<div class="summaryTableDescription"> |
| The unique identifier for this object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr></table></div><a name="protectedPropertySummary"></a><div class="summarySection"><div class="summaryTableTitle">Protected Properties</div><div class="showHideLinks"><div id="hideInheritedProtectedProperty" class="hideInheritedProtectedProperty"><a class="showHideLink" href="#protectedPropertySummary" onclick="javascript:setInheritedVisible(false,'ProtectedProperty');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Protected Properties</a></div><div id="showInheritedProtectedProperty" class="showInheritedProtectedProperty"><a class="showHideLink" href="#protectedPropertySummary" onclick="javascript:setInheritedVisible(true,'ProtectedProperty');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Protected Properties</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable hideInheritedProtectedProperty" id="summaryTableProtectedProperty"><tr><th> </th><th colspan="2">Property</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#dispatcher" class="signatureLink">dispatcher</a> : EventDispatcher<div class="summaryTableDescription"> |
| A reference to the EventDispatcher for this proxy.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#notifiers" class="signatureLink">notifiers</a> : Object<div class="summaryTableDescription"> |
| A hashmap of property change notifiers that this proxy is |
| listening for changes from; the key of the map is the property name.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#object" class="signatureLink">object</a> : Object<div class="summaryTableDescription">[read-only] |
| The object being proxied.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#propertyList" class="signatureLink">propertyList</a> : Array<div class="summaryTableDescription"> |
| Contains a list of all of the property names for the proxied object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#proxyClass" class="signatureLink">proxyClass</a> : Class<div class="summaryTableDescription"> |
| Indicates what kind of proxy to create |
| when proxying complex properties.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedProtectedProperty"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><a href="../../mx/utils/ObjectProxy.html#type" class="signatureLink">type</a> : QName<div class="summaryTableDescription"> |
| The qualified type name associated with this object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr></table></div><a name="methodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Public Methods </div><div class="showHideLinks"><div id="hideInheritedMethod" class="hideInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(false,'Method');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Hide Inherited Public Methods</a></div><div id="showInheritedMethod" class="showInheritedMethod"><a class="showHideLink" href="#methodSummary" onclick="javascript:setInheritedVisible(true,'Method');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Public Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable " id="summaryTableMethod"><tr><th> </th><th colspan="2">Method</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class=""><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"> </td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="#DataItem()" class="signatureLink">DataItem</a>()</div><div class="summaryTableDescription"> |
| Constructor |
| |
| </div></td><td class="summaryTableOwnerCol">DataItem</td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#addEventListener()" class="signatureLink">addEventListener</a>(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void</div><div class="summaryTableDescription"> |
| Registers an event listener object |
| so that the listener receives notification of an event.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#dispatchEvent()" class="signatureLink">dispatchEvent</a>(event:Event):Boolean</div><div class="summaryTableDescription"> |
| Dispatches an event into the event flow.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#hasEventListener()" class="signatureLink">hasEventListener</a>(type:String):Boolean</div><div class="summaryTableDescription"> |
| Checks whether there are any event listeners registered |
| for a specific type of event.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#propertyChangeHandler()" class="signatureLink">propertyChangeHandler</a>(event:<a href="../../mx/events/PropertyChangeEvent.html">PropertyChangeEvent</a>):void</div><div class="summaryTableDescription"> |
| Called when a complex property is updated.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#readExternal()" class="signatureLink">readExternal</a>(input:IDataInput):void</div><div class="summaryTableDescription"> |
| Since Flex only uses ObjectProxy to wrap anonymous objects, |
| the server flex.messaging.io.ObjectProxy instance serializes itself |
| as a Map that will be returned as a plain ActionScript object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#removeEventListener()" class="signatureLink">removeEventListener</a>(type:String, listener:Function, useCapture:Boolean = false):void</div><div class="summaryTableDescription"> |
| Removes an event listener.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#willTrigger()" class="signatureLink">willTrigger</a>(type:String):Boolean</div><div class="summaryTableDescription"> |
| Checks whether an event listener is registered with this object |
| or any of its ancestors for the specified event type.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr><tr class="hideInheritedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#writeExternal()" class="signatureLink">writeExternal</a>(output:IDataOutput):void</div><div class="summaryTableDescription"> |
| Since Flex only serializes the inner ActionScript object that it wraps, |
| the server flex.messaging.io.ObjectProxy populates itself |
| with this anonymous object's contents and appears to the user |
| as a Map.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr></table></div><a name="methodSummary"></a><a name="protectedMethodSummary"></a><div class="summarySection"><div class="summaryTableTitle">Protected Methods </div><div class="showHideLinks"><div id="hideInheritedProtectedMethod" class="hideInheritedProtectedMethod"><a class="showHideLink" href="#protectedMethodSummary" onclick="javascript:setInheritedVisible(false,'ProtectedMethod');"><img class="showHideLinkImage" src="../../images/expanded.gif"> Show Inherited Protected Methods</a></div><div id="showInheritedProtectedMethod" class="showInheritedProtectedMethod"><a class="showHideLink" href="#protectedMethodSummary" onclick="javascript:setInheritedVisible(true,'ProtectedMethod');"><img class="showHideLinkImage" src="../../images/collapsed.gif"> Show Inherited Protected Methods</a></div></div><table cellspacing="0" cellpadding="3" class="summaryTable hideInheritedProtectedMethod" id="summaryTableProtectedMethod"><tr><th> </th><th colspan="2">Method</th><th class="summaryTableOwnerCol">Defined By</th></tr><tr class="hideInheritedProtectedMethod"><td class="summaryTablePaddingCol"> </td><td class="summaryTableInheritanceCol"><img src="../../images/inheritedSummary.gif" alt="Inherited" title="Inherited" class="inheritedSummaryImage"></td><td class="summaryTableSignatureCol"><div class="summarySignature"><a href="../../mx/utils/ObjectProxy.html#setupPropertyList()" class="signatureLink">setupPropertyList</a>():void</div><div class="summaryTableDescription"> |
| This method creates an array of all of the property names for the |
| proxied object.</div></td><td class="summaryTableOwnerCol"><a href="../../mx/utils/ObjectProxy.html">ObjectProxy</a></td></tr></table></div><script language="javascript" type="text/javascript"><!-- |
| showHideInherited(); |
| --></script><div class="MainContent"><a name="constructorDetail"></a><div class="detailSectionHeader">Constructor Detail</div><a name="DataItem()"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">DataItem</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">Constructor</td></tr></table><div class="detailBody"><code>public function DataItem()</code><p></p><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Language Version : </b></td><td>ActionScript 3.0</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Product Version : </b></td><td>Flex 4.5</td></tr></table><table cellpadding="0" cellspacing="0" border="0"><tr><td style="white-space:nowrap" valign="top"><b> Runtime Versions : </b></td><td>Flash Player 10, AIR 2.5</td></tr></table><p></p><p> |
| Constructor |
| |
| </p></div><br/><br/><hr><br/><p></p><center class="copyright"><footer>The Apache Software Foundation</footer><br/>Wed Nov 15 2017, 09:50 AM +01:00 </center></div></body></html><!--The Apache Software Foundation<br/>Wed Nov 15 2017, 09:50 AM +01:00 --> |
