Actionscript 3 我们如何在flex中使用比较验证器

Flex中有比较验证器吗？我找了，但找不到。有没有像比较验证器这样的验证器

我的示例是如何使用flex validator检查密码和确认密码是否相同

<s:TextInput id="password" width="218" textAlign="left" contentBackgroundColor="#FFFFFF"/>
<s:TextInput id="confirmpassword" width="218" textAlign="left" contentBackgroundColor="#FFFFFF"/> 

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具有以下两个电子邮件字段，首先我们定义了一个标准电子邮件验证程序，对于确认，我们定义了一个附加在答案末尾的自定义电子邮件验证程序

<mx:HBox
    verticalAlign   = "middle"
    color           = "#101010">
    <mx:Label
        text        = "E-Mail Address:"
        width       = "120"/>
    <mx:TextInput
        id          = "txtEmail"
        width       = "220"/>
</mx:HBox>
<mx:HBox
    verticalAlign   = "middle"
    color           = "#101010">
    <mx:Text
        text        = "Rewrite E-Mail Address:"
        width       = "120"/>
    <mx:TextInput
        id          = "txtEmail2"
        width       = "220"/>
</mx:HBox> 

如果您需要手动检查表单中的验证器。例如，在提交注册内容之前，请使用以下方法

public function isValid():Boolean
{
var validators:Array            = [valEmail, valEmail2];
    var validatorErrorArray:Array   = Validator.validateAll(validators);;
var isValidForm:Boolean         = validatorErrorArray.length == 0;

    return isValidForm;
}

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你能说得更清楚些吗？有几个flex验证器，您也可以创建自己的。。请举例说明你想要什么achieve@AdrianPirvulescu请检查上面的示例。我没有得到它，还是您只是在寻找

==

？flex中没有比较验证器。有没有这样的验证器好吧，现在我明白你的意思了。看起来您需要的是一个字符串验证器，用于将键入的文本与给定的字符串进行匹配。现在就写答案…：）

package validators
{
import mx.validators.ValidationResult;
import mx.validators.Validator;

public class EmailConfirmationValidator extends Validator
{
    public var confirmationSource: Object;
    public var confirmationProperty: String;

    public function EmailConfirmationValidator()
    {
        super();
    }

    // Define the doValidation() method.
    override protected function doValidation(value:Object):Array 
    {
        // Call base class doValidation().
        var results:Array = super.doValidation(value);

        if (value.text != value.confirmation)
        {
            results.push(new ValidationResult(true, null, "Mismatch",
                "Emails do not match!"));
        }

        return results;
    }       

    /**
     *  @private
     *  Grabs the data for the confirmation password from its different sources
     *  if its there and bundles it to be processed by the doValidation routine.
     */
    override protected function getValueFromSource():Object
    {
        var value:Object = {};

        value.text = super.getValueFromSource();

        if (confirmationSource && confirmationProperty)
        {
            value.confirmation = confirmationSource[confirmationProperty];
        }

        return  value;
    }  


}
}

public function isValid():Boolean
{
var validators:Array            = [valEmail, valEmail2];
    var validatorErrorArray:Array   = Validator.validateAll(validators);;
var isValidForm:Boolean         = validatorErrorArray.length == 0;

    return isValidForm;
}