为何不允许本地或全球变量作为WPF数据约束源; 只有包装属性才能被约束。
所以问题是,在变量上,哪些属性是折叠的属性,为什么这些属性是允许的,为什么变量是不允许的。
我需要知道 在引擎盖系统下。
用于绑定的机制 (PropertyDescriptionor , < a href="
而且,使用公共领域通常都是不良做法,所以它们为什么要费力执行对领域有约束力的规定?这只会促进这些不良做法。
这不是完全真实的。您 能够 em> 使用一个字段来设定一个约束性, 但首先您必须声明它像一种资源, 在通过约束性宣言中的资源键访问它之后 。
当您要重新约束对财产有约束力的代码时, 完成此操作是为了同时弹出 on Porperty Changed
通知 。
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