在运行时使用反射来分析和计算对象的数据绑定表达式。
Evaluates data-binding expressions at run time and formats the result as a string.
如果一个值绑定表达式引用的模型数据不再可用，或者在组件树被恢复之前发生了更改，那么组件树的一些部分将被撤销。
If model data referenced by a value binding expression is no longer available or has changed prior to the component tree being restored, it can result in portions of the tree being dropped.
这些特性实现了数据绑定，并允许JSF框架在表达式计算完毕后进行控制。
These features enabled data bindings and allowed the JSF framework to control when an expression is evaluated.
表达式由数据结构、绑定的变量（即具有值的变量）、数学操作符和函数调用组成。
The expression is composed of data structures, bound variables (that is, those with a value), mathematical operations and function calls.
NETFX4里的WF包括可组装的工作流style，统一的规则和行为，以及改进的数据绑定、定界和表达式支持。
WF in.net FX 4 includes a composable set of workflow styles, a unification of rules and activities as well as improved data binding, scoping, and expression support.
现在，对模板表达式和语句有了一点感觉了吧。除插值表达式外，还有各种各样的数据绑定语法，是学习它们是时候了。
Now that we have a feel for template expressions and statements, we're ready to learn about the varieties of data binding syntax beyond interpolation.
定义：通过将绑定表达式用作定位器，“绑定”将实例数据结点连接到表单控制或模型项目约束。
Definition: a "binding" connects an instance data node to a form control or to a model item constraint by using a binding expression as a locater.
数据绑定的第一种形式——插值表达式——展示了模板的HTML可以有多丰富。
Let's turn to the first form of data binding - interpolation - to see how much richer template HTML can be.
通过将绑定表达式用作定位器，“绑定”将实例数据结点连接到表单控制或模型项目约束。
A "binding" connects an instance data node to a form control or to a model item constraint by using a binding expression as a locater.
通过将绑定表达式用作定位器，“绑定”将实例数据结点连接到表单控制或模型项目约束。
A "binding" connects an instance data node to a form control or to a model item constraint by using a binding expression as a locater.
应用推荐