Flex数据绑定

Data binding is the process of tying the data in one object to another object. It provides a convenient way to pass data around in an application.

 

根据定义，我们知道，一个绑定需要一个源，一个目的地，当然，还应该有个触发事件。

MXML绑定：
简单绑定：使用大括号语法：

<mx:HSlider id="mySlider"/>
<mx:Text text="{mySlider.value}"/>     
松耦合绑定：使用mx:binding标签：

其实这是一种MVC,绑定当作C来用。

Note： The source property of an <mx:Binding> tag can contain curly braces. When there are no curly braces in the source property, the value is treated as a single ActionScript expression. When there are curly braces in the source property, the value is treated as a concatenated ActionScript expression.

AS3绑定：
BindingUtils.bindProperty(wormModel, "length", mySlider, "value");