绑定与x之间的区别：绑定 [英] Difference between Binding and x:Bind

问题描述

在UWP中使用什么，绑定或 x：绑定它们之间有什么区别？ p>

因为我看到很多帖子，人们使用绑定，我只绑定与 x：在UWP中绑定

在MSDN主页上，它只表示由 {x：Bind } 和 {Binding} 在很大程度上与功能相当。而 x：绑定是更快。

但是它们之间有什么区别？

因为 不等同于。

我的报价链接： MSDN

所以我的问题是：

在UWP中使用Binding或x：Bind有什么区别？

解决方案

以下可能不完整，但有一些主要区别是

• 旧样式 {Binding}

  
  
  
  
  
  • 绑定到DataContext
  
  
  • 绑定到属性名称，灵活关于实际的来源类型
  
  

• 新样式 {x：Bind}
  
  
  
  
  • 绑定到框架元素（代码隐藏类）
  
  
  • 需要在compi上修改所有类型le时间
  
  
  • 默认为更节俭的OneTime模式
  
  

和从构建14393开始， {x：Bind} 支持：

• 直接BooleanToVisibility绑定，没有ValueConverter


• 扩展功能绑定


• cast


• 索引器

较新的{x：Bind}在运行时更快一些，但同样重要的是会给错误绑定的编译器错误。在{Binding}中，大多数情况下您将看到一个空的控件。

What to use in UWP, Binding or x:Bind and what is the difference between them?

Because I see a lot of posts where people use Binding and I only Bind with x:Bind in UWP.

At the MSDN Homepage it only says that "the binding objects created by {x:Bind} and {Binding} are largely functionally equivalent." and that x:Bind is faster.

But what is the difference between them?

Because "largely functionally equivalent" does not mean equivalent.

The Link from my Quote: MSDN

So my Question is:

What is the difference in using Binding or x:Bind in UWP?

解决方案

The following is probably not complete, but some of the major differences are

• Old style {Binding }

  • binds to the DataContext
  • binds to a Property Name, flexible about the actual source type

• New style {x:Bind }
  • binds to the Framework element (code-behind class)
  • needs all types fixed at compile time
  • defaults to the more frugal OneTime mode

And starting with build 14393, {x:Bind } supports:

• direct BooleanToVisibility binding, without a ValueConverter
• expanded Function binding
• casting
• dictionary indexers

The newer {x:Bind } is a little faster at runtime but just as important it will give compiler errors for erroneous bindings. With {Binding } you would just see an empty Control in most cases.

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