It would be nice to have an AddOrUpdate method on IViewModelWriter for cases when you don't know if the ViewModel will exist or not at the time of usage.
It could have a similar signature to https://msdn.microsoft.com/en-us/library/ee378665(v=vs.110).aspx.
It would be nice to have an
AddOrUpdatemethod onIViewModelWriterfor cases when you don't know if theViewModelwill exist or not at the time of usage.It could have a similar signature to https://msdn.microsoft.com/en-us/library/ee378665(v=vs.110).aspx.