Used for providing a display format for the binding value or compositing the value with other text. Implementors of Xamarin.Forms.BindingBase decide how the string format is utilized, but all support standard string.Format conventions.

Xamarin.Forms.Binding allows for one argument for its singular value.

A simple example showing compositing text and determining the display format for the value with a Xamarin.Forms.Binding

Label label = new Label();
label.AddBinding (new Binding (Label.TextProperty, "Price") {
  StringFormat = "Price: {0:C2}"
});