WaitUntilTrue(FuncBoolean, INotifyPropertyChanged) Method

public static ITask UntilTrue(
	Func<bool> expression,
	params INotifyPropertyChanged[] observables
)

// CustomProperty implements INotifyPropertyChanged which is how the Wait methods
// all work but here is an example of implementing your own class which can be waited on.
public class CustomClass : INotifyPropertyChanged {
    public event PropertyChangedEventHandler PropertyChanged;

    void OnPropertyChanged([CallerMemberName]string propertyName="") {
        if (PropertyChanged != null) {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

    private int a;
    public int A {
        get { return a; }
        set { a = value; OnPropertyChanged(); }
    }
}

[Auto] public class CustomWaitUntilTrue {
    public CustomClass Custom = new CustomClass();

    [Auto] IEnumerable OnInitialize(Visual sender) {
        Logger.Log("Waiting for expression to be true.");
        // To test this script use the immediate window, select the visual with the script and enter:
        //    Selection[0].Custom.A = 11
        yield return Wait.UntilTrue(() => Custom.A > 10, Custom);
        Logger.Log("Expression is now true: "+Custom.A);
    }
}