这意味着当控件离开移动屏幕时，您不能缩小来访问控件。
This means that when the controls go off the mobile screen, you can't zoom out to access the control.
视图bean还允许我们把表示逻辑与我们的商业逻辑分离开来，将HTML代码放在servlet以及其它控件和模型对象之外。
View beans also let us separate presentation logic from our business logic, keeping HTML code out of our servlets and other control and model objects.
编辑数据绑定控件中的值时，用户必须离开当前记录才能将更新后的值提交给该控件绑定到的基础数据源。
When editing values in data-bound controls, users must navigate off the current record to commit the updated value to the underlying data source that the control is bound to.
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