BindingCollectionUpdate Method

public void Update(
	BindingUpdateMode mode = BindingUpdateMode.Source
)

Public Sub Update ( 
	Optional mode As BindingUpdateMode = BindingUpdateMode.Source
)

member Update : 
        ?mode : BindingUpdateMode 
(* Defaults:
        let _mode = defaultArg mode BindingUpdateMode.Source
*)
-> unit 

Bindings can automatically update if enabled and there are sufficient property changed event(s), However in some cases you will want to update the bindings manually, for example if you want to save the data on the form, it would validate first, then update the bound object(s) with the updated values.