WPF - data binding window title to view model property

Question

I\'m trying to bind my window title to a property in my view model, like so:

Title=\"{Binding WindowTitle}\"

The property looks like this:<

Answer 1

That's because WPF has no way of knowing that WindowTitle depends on CurrentProfileName. Your class needs to implement INotifyPropertyChanged, and when you change the value of CurrentProfileName, you need to raise the PropertyChanged event for CurrentProfileName and WindowTitle

private string _currentProfileName;
public string CurrentProfileName
{
    get { return __currentProfileName; }
    set
    {
        _currentProfileName = value;
        OnPropertyChanged("CurrentProfileName");
        OnPropertyChanged("WindowTitle");
    }
}

---

UPDATE

Here's a typical implementation of INotifyPropertyChanged :

public class MyClass : INotifyPropertyChanged
{
    // The event declared in the interface
    public event PropertyChangedEventHandler PropertyChanged;

    // Helper method to raise the event
    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChangedEventHandler handler = PropertyChanged;
        if (handler != null)
            handler(this, new PropertyChangedEventArgs(propertyName);
    }

    ...
}