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	<title>Flexponential &#187; virtualization</title>
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	<description>Programming under the influence of Flex</description>
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		<title>Performance implications of the List itemRenderer vs. itemRendererFunction properties</title>
		<link>http://flexponential.com/2009/07/10/performance-implications-of-the-list-itemrenderer-vs-itemrendererfunction-properties/</link>
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		<pubDate>Fri, 10 Jul 2009 21:22:39 +0000</pubDate>
		<dc:creator>Steven Shongrunden</dc:creator>
				<category><![CDATA[Flex 4]]></category>
		<category><![CDATA[itemRendererFunction]]></category>
		<category><![CDATA[List]]></category>
		<category><![CDATA[spark]]></category>
		<category><![CDATA[useVirtualLayout]]></category>
		<category><![CDATA[virtualization]]></category>

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		<description><![CDATA[The spark List component in Flex 4 has virtualization enabled by default. Virtualization is an optimization that only renders items that are currently in view which allows the List to support very large data sets. You can learn more about how virtualization works in Flex 4 by reading the Spark Virtualization Spec. In Flex 4, [...]]]></description>
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