The following example shows how you can create a simple ComboBox item renderer which displays multiline items in the ComboBox control’s drop down menu
<?xml?version="1.0"?encoding="utf-8"?>
<!--?http://blog.flexexamples.com/2007/09/25/creating-a-custom-combobox-item-renderer-in-flex/?-->
<mx:Application?xmlns:mx="http://www.adobe.com/2006/mxml"
????????layout="vertical"
????????verticalAlign="top"
????????backgroundColor="white">

????<mx:XMLList?id="statesXMLList">
????????<state?abbrev="AL"?name="Alabama"?/>
????????<state?abbrev="AK"?name="Alaska"?/>
????????<state?abbrev="AZ"?name="Arizona"?/>
????????<state?abbrev="AR"?name="Arkansas"?/>
????????<state?abbrev="CA"?name="California"?/>
????????<state?abbrev="CO"?name="Colorado"?/>
????????<state?abbrev="CT"?name="Connecticut"?/>
????</mx:XMLList>

????<mx:ComboBox?id="comboBox"
????????????prompt="Please?select?a?State"
????????????dataProvider="{statesXMLList}"
????????????rowCount="3"
????????????labelField="@name"
????????????itemRenderer="ComboBoxItemRenderer"?/>

</mx:Application>
ComboBoxItemRenderer.mxml:
<?xml?version="1.0"?encoding="utf-8"?>
<!--?http://blog.flexexamples.com/2007/09/25/creating-a-custom-combobox-item-renderer-in-flex/?-->
<mx:VBox?xmlns:mx="http://www.adobe.com/2006/mxml"
????????styleName="plain">

????<mx:Label?text="{data.@name}"
????????????fontSize="11"
????????????fontWeight="bold"?/>
????<mx:Label?text="{data.@abbrev}"
????????????fontSize="9"
????????????paddingLeft="10"?/>

</mx:VBox>



? ? 本文轉自 OldHawk ?博客園博客，原文鏈接：http://www.cnblogs.com/taobataoma/archive/2008/01/11/1035775.html，如需轉載請自行聯系原作者

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