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copied!<p>Observable collections implement <code>INofityCollectionChanged</code> which is used by WPF to refresh the collection of view items.</p> <p>However, for the status to be updated you need your data to implement <code>INotifyPropertyChanged</code>.</p> <ul> <li>Each class you want to appear within the view must implement it, so WPF will know when its properties change and which of its properties has changed.</li> </ul> <p>The implementation is simple...</p> <pre><code>// Should implement INotifyPropertyChanged if the dictionary itself // can be changed and not only its items public class CustomClass { ObservableDictionary sub1item; // Bunch of properties and methods in this class // INotify not implemented } public class InnerClass : INotifyProperyChanged { // Bunch of properties and methods in this class // INotify not implemented public SomeEnum Status{ get{ return this.status; } } public event PropertyChangedEventHandler PropertyChanged; protected void NotifyPropertyChanged(string propertyName) { if(PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } // where ever this.status is changed directly, // call NotifyPropertyChanged("Status") // (at end of that method) // // if this.status is changed from outside class (if public), // then add a public method NotifyStatusChanged() which calls // NotifyPropertyChanged("Status") // // If Status property has a set{} then if new value != this.status, // call NotifyPropertyChanged("Status") at end of setter } </code></pre>

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