How to create a template variable like that of Angular 2?

Question

I want to create a template variable in Xamarin Forms like the ones we can create in Angular.

For example like this

Answer 1

You can use x:Name to name a view then refer to it elsewhere using x:Reference. Like the following:

<Slider x:Name="slider"
        Maximum="360" />

<Label BindingContext="{x:Reference slider}"
      Text="{Binding Value, StringFormat='The angle is {0:F0} degrees'}" />

Here is an article showing this and other binding techniques.