Is there any data binding mechanism available for iOS?

Question

In .NET I just do something like DataForm.Source = Object and then magic happens. Platform routes data changes from ui fileds to object properties, does validation and so on

Answer 1

Yes, there is a data binding framework that integrates well into Interface Builder and requires only minimal code overhead (if at all).

Take a look at https://github.com/mutech/aka-ios-beacon

EDIT: You can for example bind a table view to a fetched results controller simply by setting the data source binding property of the table view in interface builder to:

[ yourResultsController ] { defaultCellMapping: "YourCellId" }

And the only thing you have to do is to define a property yourResultsController in your view controller.

The wiki provides a rather complete documentation and a lot of example use cases.

Answer 2

If you're using Swift, check out Bond framework: https://github.com/ReactiveKit/Bond

Binding is as simple as:

textField.reactive.text.bind(to: label.reactive.text)

It plays well with functional:

textField.reactive.text
  .map { "Hi " + $0 }
  .bind(to: label.reactive.text)

And provides simple observations:

textField.reactive.text
  .observeNext { text in
    print(text)
  }