如何以编程方式从Flex组件删除确认 这是我的方法

How to remove validation programmatically from flex component This is my method

public static function validateRequired(txt:TextInput, errorMessage:String="This field is required"):Boolean
        {
                var v:Validator = new Validator();

                v.listener = txt;
                var result:ValidationResultEvent = v.validate(txt.text);
                var returnResult:Boolean = (result.type == ValidationResultEvent.VALID);
                //Alert.show("validation result is " + returnResult);
                if (!returnResult) {
                    v.requiredFieldError = errorMessage;
                }
                return returnResult;
        }

但是，随着每一次我创建新的验证，所以弹出包含如

But, as each time i am creating new validator, so pop-up contains multiple messages like

此字段是必需的。 此字段是必需的。

This field is required. This field is required.

如何去除附在与组件的错误信息？

How to remove error messages attached with component?

推荐答案

在Validator.enabled属性，可以启用和禁用验证。当enabled属性的值是true，验证程序被启用;当值为false时，禁用验证程序。当禁用验证程序后，将分派任何事件，而validate（）方法返回null。

The Validator.enabled property lets you enable and disable a validator. When the value of the enabled property is true, the validator is enabled; when the value is false, the validator is disabled. When a validator is disabled, it dispatches no events, and the validate() method returns null.

例如，您可以设置使用数据绑定，enabled属性如下code所示：

For example, you can set the enabled property by using data binding, as the following code shows:

<?xml version="1.0"?>
<!-- validators\EnableVal.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> 

    <mx:ZipCodeValidator id="zcVal" 
        source="{inputA}" 
        property="text" 
        required="true" 
        enabled="{enableV.selected}"/>

    <mx:TextInput id="inputA"/> 
    <mx:TextInput/> 
    <mx:CheckBox id="enableV" 
        label="Validate input?"/>
</mx:Application>