本文中以DateValidator为例，首先介绍一下传统的DateValidator用法

 

<mx:DateValidator id="dateValidator" source="test" formatError="Format error, should be 'YYYY-MM-DD'"/>

<mx:DateField id="test" formatString='YYYY-MM-DD'/>

 

这种验证方法只适用与一对一，当我们希望只定义一个DateValidator来验证一组DateField时该方法就无能为力了。

下面的代码将介绍如果解决这一问题。

 

代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="absolute">
 <mx:Script>
  <![CDATA[
   import mx.validators.DateValidator;
   import mx.events.ItemClickEvent;
   import mx.events.ValidationResultEvent;
   import mx.validators.ValidationResult;
   import mx.controls.Alert;

   var testObject:Object=new Object();

   private function showDate():void
   {
    Alert.show(dateFormatter.format(test.selectedDate));
   }

   private function validateDate(event:FocusEvent, name:String):void
   {

       if(event.target.text){
         dateValidator.source=event.target;
           if (dateValidator.validate().type == ValidationResultEvent.INVALID)
                Alert.show(name+": "+(DateValidator.validateDate(dateValidator,event.target.text,

                new Date().toDateString())[0] as ValidationResult).errorMessage);
           else
                resultDate.text=dateFormatter.format((testObject['date']));     
     }

   }
  ]]>
 </mx:Script>

 <mx:DateValidator id="dateValidator"
       formatError="Incorrect formatting string,should be 'YYYY-MM-DD'."
       inputFormat="YYYY-MM-DD"
       property="text"/>

 <mx:DateFormatter id="dateFormatter"
       formatString="YYYY-MM-DD"/>
 <mx:DateField x="427"
      y="168"
      id="test"
      width="220"
      formatString="YYYY-MM-DD"
      toolTip="{test.selectedDate}"
      editable="true"
      change="{testObject['date']=DateField(event.target).selectedDate}"
      focusOut="validateDate(event,'DATE')"/>
 <mx:Button x="427"
      y="258"
      label="Show Date"
      click="showDate()"/>
 <mx:DateField x="427"
      y="198"
      width="220"
      formatString="YYYY-MM-DD"
      toolTip="{test.selectedDate}"
      editable="true"
      change="{testObject['date']=DateField(event.target).selectedDate}"
      focusOut="validateDate(event,'DATE1')"/>
 <mx:TextInput x="427"
      y="228"
      width="220"
      id="resultDate"/>
 <mx:Label x="384" y="170" text="DATE:"/>
 <mx:Label x="381" y="200" text="DATE1:"/>
 <mx:Label x="374" y="230" text="RESULT:"/>

</mx:Application>

 

 

private function sumbit():void
   {
    //验证信息输入
    var addValidators:Array = [sqrValid,sqlyValid,shsjValid,shrValid,syddValid,syrValid,qysjValid];
    var error:Array = Validator.validateAll(addValidators);
    if(error.length > 0) {
     focusManager.setFocus(error[0].target.source);
     Alert.okLabel = "确认";
     Alert.show(error[0].target.requiredFieldError,"提示",Alert.OK,this.parent as Sprite);
     return;
    }