Mega Code Archive
Using String properties and methods to get text indexes
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Code from Flex 4 Documentation "Using Adobe Flex 4".
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<!-- textcontrols/TextRangeExample.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark">
<s:layout>
<s:VerticalLayout />
</s:layout>
<fx:Script>
import mx.controls.textClasses.TextRange
private function resetText():void {
ta1.text = "This is a test of the emergency broadcast system. It is only a test.";
}
public function alterText():void {
// Create a TextRange object starting with "the" and ending at the
// first period. Replace it with new formatted HTML text.
var tr1:TextRange = new TextRange(
ta1, false, ta1.text.indexOf("the", 0), ta1.text.indexOf(".", 0)
);
tr1.htmlText="<i>italic HTML text</i>"
// Create a TextRange object with the remaining text.
// Select the text and change its formatting.
var tr2:TextRange = new TextRange(
ta1, true, ta1.text.indexOf("It", 0), ta1.text.length-1
);
tr2.color=0xFF00FF;
tr2.fontSize=18;
tr2.fontStyle = "italic"; // any other value turns italic off
tr2.fontWeight = "bold"; // any other value turns bold off
ta1.setSelection(0, 0);
}
</fx:Script>
<mx:TextArea id="ta1" fontSize="12" fontWeight="bold" width="100%"
height="100">
<mx:text>
This is a test of the emergency broadcast system. It is only a test.
</mx:text>
</mx:TextArea>
<s:HGroup>
<mx:Button label="Alter Text" click="alterText();" />
<mx:Button label="Reset" click="resetText();" />
</s:HGroup>
</s:Application>
]]>