批量检查validator

1. <!--  Validators-->  
2.  <mx:Array id="validators">  
3.     <mx:StringValidator  id="userNameValidator" source="{username}"  property="text"  required="true"/>  
4.     <mx:StringValidator  id="passwordValidator" source="{password}"  property="text" required="true" />  
5.  </mx:Array>       
6.   
7.   
8. <mx:Form id="loginForm" x="0" y="0">  
9.           <mx:FormItem label="Username:" >  
10.                <mx:TextInput id="username" />  
11.            </mx:FormItem>  
12.            <mx:FormItem label="Password:" >  
13.                <mx:TextInput id="password" displayAsPassword="true" />  
14.            </mx:FormItem>  
15.            <mx:FormItem direction="horizontal" verticalGap="15" paddingTop="5" width="170">  
16.                <mx:Button id="loginBtn" label="Login" click="login()"/>  
17.            </mx:FormItem>  
18.     </mx:Form>

1. 1. private function login():void{  
   2.             if(Validator.validateAll(validators).length == 0){  
   3.                 var loginUser:User = new User();  
   4.                 loginUser.userName=username.text;  
   5.                 loginUser.password=password.text;  
   6.                 var loginEvent:LoginEvent = new LoginEvent(LoginEvent.LOGIN);  
   7.                 loginEvent.loginUser = loginUser;  
   8.                 dispatchEvent(loginEvent);
   9.             }     
   10.         }