Add x:Bind

[bschoepke]

x:Bind was a major improvement made to UWP XAML. It's very powerful thanks to function binding, compile-time error checking, and easier to debug than {Binding}.

[h82258652]

Good, especially WPF.

[billreiss]

Very important, especially in lists on mobile platforms for performance

[davidezordan]

I agree with Bill, very important

[birbilis]

Useful article comparing x:Bind to Binding
https://mcnextpost.com/2015/11/10/uwpxaml-compiled-binding-what-is-it/

NB: Compiled Binding is only available for Windows 10 Universal apps (UWP). There is actually no plan to port it to WPF or Windows 8 apps in the future.

this was a bad choice, especially having such differences between Win8/Phone8.1 Store apps and UWP

[birbilis]

other useful links:
https://docs.microsoft.com/el-gr/windows/uwp/data-binding/data-binding-quickstart
https://docs.microsoft.com/el-gr/windows/uwp/data-binding/data-binding-in-depth

[nick-goloborodko]

Also, if it is at all technically possible bring over the UpdateSourceTrigger to the x;Bind