Tooltip for DataGrid Column Elements.

Here itemRenderer comes into play.The below code will given on idea how this is achevied but you need to go through the Classes.

Flex App.mxml code

<?xml version=”1.0″ encoding=”utf-8″?>
<mx:TitleWindow xmlns:mx=”http://www.adobe.com/2006/mxml” layout=”absolute” width=”700″ height=”300″
creationComplete=”projectsSrv.send();”>
<mx:HTTPService
id=”projectsSrv”
url=”projects.php.xml”
useProxy=”false” method=”POST”>
</mx:HTTPService>
<mx:DataGrid  dataProvider=”{projectsSrv.lastResult.records.record}” width=”370″ x=”23″ y=”10″>
<mx:columns>
<mx:DataGridColumn dataField=”label”>
<mx:itemRenderer>
<mx:Component>
<mx:Label>
<mx:Script>
<![CDATA[
override public function set data(value:Object):void
{
super.data = value;
this.toolTip = data.label;
this.selectable = true;
super.invalidateDisplayList();
}
]]>
</mx:Script>
</mx:Label>
</mx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
</mx:columns>
</mx:DataGrid>
</mx:TitleWindow>

projects.php.xml code.

<records>
<record data=”1″ label=”Corco”/>
<record data=”5″ label=”Shell Crop Protection”/>
<record data=”7″ label=”Olin McIntosh”/>
<record data=”9″ label=”Crab Orchard”/>
<record data=”10″ label=”Shell Oil Del Amo”/>
<record data=”11″ label=”AIG South Jersey Gas”/>
<record data=”12″ label=”Husch &amp; Eppenberger Litigation-New York”/>
<record data=”22″ label=”Shell Sturbridge”/><record data=”24″ label=”Shell Southington”/>
<record data=”26″ label=”Olin Personal Injury”/>
</records>

The projects.php.xml is a xml file in the same directory. Now when you run the file you can see the Tooltip on the row element , similarly you can mention for other columns.

Enjoy the Post and code. Comment me for queries.

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