Update DataGrid on item change with Caliburn Micro - mvvm

Question

I have a datagrid which is bound to a collection of items using Caliburn Micro. I would like the grid to update as soon as a user makes an edit on each row. I would think this would be simple (like ASP.NET simple) but I haven't found anything that seems to work.
Here is my ViewModel
public class JournalViewModel : Caliburn.PresentationFramework.PropertyChangedBase
{
private CrystalRptDataEntities ctx = new CrystalRptDataEntities();
private BindableCollection<EmployeeInfo> employees;
public JournalViewModel()
{
Load();
}
public void Load()
{
employees = new BindableCollection<EmployeeInfo>(ctx.EmployeeInfoes);
AllEmployees = employees;
}
public BindableCollection<EmployeeInfo> AllEmployees
{
get { return employees; }
set
{
employees = value;
NotifyOfPropertyChange(() => AllEmployees);
}
}
//....
}
Here is my view
<DataGrid x:Name="AllEmployees" AutoGenerateColumns="True" />

Answer 1

I found the solution to my own question - it took 3 things.
1) I had to add this method to my JournalViewModel class
public void SaveChanges()
{
ctx.SaveChanges();
}
2) Then I had to add these 2 references to my xaml file
xmlns:i="clr-namespace:System.Windows.Interactivity;
assembly=System.Windows.Interactivity"
xmlns:cal="http://www.caliburnproject.org"
3) Then I had to attach an Event to my Datagrid like this:
<DataGrid x:Name="AllEmployees"
AutoGenerateColumns="True"
cal:Message.Attach="[Event CellEditEnding]=[Action SaveChanges()]">
That way every time I finished editing a cell, the ctx gets saved.