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Validating strings using the StringValidator class

The following example shows how you can validate strings using the static StringValidator.validateString() method.





<?xml version="1.0" encoding="utf-8"?>


<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="vertical"

verticalAlign="middle"

backgroundColor="white">



<mx:Script>

<![CDATA[

import mx.utils.ObjectUtil;

import mx.controls.Alert;



private function doValidate(value:String):void {

var arr:Array = StringValidator.validateString(stringValidator, value);

textArea.text = ObjectUtil.toString(arr);

dataGrid.dataProvider = arr;

if (arr.length == 0) {

Alert.show("String is valid.");

}

}

]]>

</mx:Script>



<mx:StringValidator id="stringValidator"

minLength="3"

maxLength="6" />



<mx:ApplicationControlBar dock="true">

<mx:TextInput id="textInput" />

<mx:Button label="validate"

click="doValidate(textInput.text);" />

</mx:ApplicationControlBar>



<mx:TabNavigator id="tabNavigator"

creationPolicy="all"

width="100%"

height="100%">

<mx:VBox label="Grid"

width="100%"

height="100%">

<mx:DataGrid id="dataGrid"

variableRowHeight="true"

width="100%"

height="100%">

<mx:columns>

<mx:DataGridColumn dataField="errorCode" />

<mx:DataGridColumn dataField="errorMessage"

wordWrap="true" />

<mx:DataGridColumn dataField="isError" />

<mx:DataGridColumn dataField="subField" />

</mx:columns>

</mx:DataGrid>

</mx:VBox>

<mx:VBox label="Text"

width="100%"

height="100%">

<mx:TextArea id="textArea"

editable="false"

width="100%"

height="100%" />

</mx:VBox>

</mx:TabNavigator>



</mx:Application>


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