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    <p>You can just have the parent VM connect to the PropertyChanged event on the child VMs. It's kind of a PITA to keep track of the children who have been added/removed etcetera so you might instead consider storing your child VMs in my <code>ItemObservableCollection</code>:</p> <pre><code>public sealed class ItemObservableCollection&lt;T&gt; : ObservableCollection&lt;T&gt; where T : INotifyPropertyChanged { public event EventHandler&lt;ItemPropertyChangedEventArgs&lt;T&gt;&gt; ItemPropertyChanged; protected override void InsertItem(int index, T item) { base.InsertItem(index, item); item.PropertyChanged += item_PropertyChanged; } protected override void RemoveItem(int index) { var item= this[index]; base.RemoveItem(index); item.PropertyChanged -= item_PropertyChanged; } protected override void ClearItems() { foreach (var item in this) { item.PropertyChanged -= item_PropertyChanged; } base.ClearItems(); } protected override void SetItem(int index, T item) { var oldItem = this[index]; oldItem.PropertyChanged -= item_PropertyChanged; base.SetItem(index, item); item.PropertyChanged -= item_PropertyChanged; } private void item_PropertyChanged(object sender, PropertyChangedEventArgs e) { OnItemPropertyChanged((T)sender, e.PropertyName); } private void OnItemPropertyChanged(T item, string propertyName) { ItemPropertyChanged.Raise(this, new ItemPropertyChangedEventArgs&lt;T&gt;(item, propertyName)); } } </code></pre> <p>Then your parent VM can just listen for all changes to child items with:</p> <pre><code>_formFields.ItemPropertyChanged += (s, e) =&gt; Foo(); </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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