How to update bound values immediately in WPF DataGrid when editing cells?

Question

I am working with a WPF DataGrid in an MVVM application. I have bound the DataGrid to an ObservableCollection in my ViewModel. Currently, when a user edits a cell in the DataGrid, the bound values only update when the cell loses focus.

Here is the XAML code for my DataGrid:

<DataGrid ItemsSource="{Binding MyCollection}" AutoGenerateColumns="True">
</DataGrid>

My ViewModel looks similar to this:

public class MyViewModel : INotifyPropertyChanged
{
    public ObservableCollection<MyModel> MyCollection { get; set; } = new();
}

How can I make the bound values update immediately as the user edits the cells in the DataGrid?

Answer 1

I found a very simple solution that works perfectly for my simple application by just changing the UpdateSourceTrigger of the editable column to PropertyChanged.

<DataGrid ItemsSource="{Binding MyCollection}" AutoGenerateColumns="False">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Column1" Binding="{Binding Path=Property1, UpdateSourceTrigger=PropertyChanged}" />
        <!-- More columns if needed -->
    </DataGrid.Columns>
</DataGrid>