Invalidate CollectionViewSource

Question

I've defined the following view:

<CollectionViewSource x:Key="PatientsView" Source="{Binding Source={x:Static Application.Current}, Path=Patients}"/>

Where Patient is the following property:

public IEnumerable<Patient> Patients
{
    get
    {
        return from patient in Database.Patients
               orderby patient.Lastname
               select patient;
    }
}

Somewhere in my code, I change the Patients database, and I want to have the controls that display this data (using the "PatientsView") to be automatically notified. What's a proper way to do this? Can the CollectionViewSource be invalidated or something?

Answer 1

How to invalidate a CollectionViewSource in code behind:

CollectionViewSource patientsView = FindResource("PatientsView") as CollectionViewSource;
patientsView.View.Refresh();