Alert

bincavin

于 2010-04-28 14:20:00 发布

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分类专栏： FLEX 文章标签： flex import object null

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A client asked me to do something seemingly simple.
"I want the Alert to have just this one sentence bolded."

Well, it's not exactly simple, so here's how you do it:

there are two solutions as below :

import mx.core.IUITextField;
use namespace mx.core.mx_internal;

   message +="Press Yes to continue or No to cancel";
    }
    if(message.length>0){
     Alert.yesLabel="Yes"
      var alert:Alert=Alert.show(message,"Alert",3,null,alertHandlerForSO);
     // alert.mx_internal::alertForm.mx_internal::textField.htmlText = message;
      IUITextField(alert.alertForm.textField).htmlText = message;
    }

========================================================

有这个想法，然后看了下flex的Alert的源码，发现alert出来的按钮、内容文本框其实都在一个AlertForm类实例中，这个实例在Alert类成员中的定义是：

/**
    * @private
    * The internal AlertForm object that contains the text, icon, and buttons
    * of the Alert control.
    */
    mx_internal var alertForm:AlertForm;

而其内容文本框在AlertForm中的定义是：

/**
     * The UITextField that displays the text of the Alert control.
     */
    mx_internal var textField:IUITextField;

ok，相信大家都知道该怎么做了，也就是在mx_internal命名空间下，把这个textfield提取出来，设置其htmltext即可，当然，你也可以进行其他的操作。
源码如下：

var alert:Alert = Alert.show("", "提示");
var tf:IUITextField = alert.mx_internal::alertForm.mx_internal::textField;
tf.autoSize = TextFieldAutoSize.CENTER;
tf.htmlText = "<a href='http://www.asarea.cn' target='_blank'><b><font color='#ffffff' size='13'>欢迎访问ASAREA</font></b></a>";

文章来自: 闪客居(www.flashas.net) 详文参考：http://flashas.net/as/20090414/4029.html