/// <summary>
/// Binds UI so that controls will look disabled and activity will be
/// displayed while operation is in progress. For simplicity Cancel button
/// will be disabled during the operation even if it is cancellable
/// </summary>
/// <param name="operation"></param>
private void BindUIToOperation(OperationBase operation)
{
Binding isActivityActiveBinding = operation.CreateOneWayBinding("IsComplete", new NotOperatorValueConverter());
Binding isEnabledBinding = operation.CreateOneWayBinding("IsComplete");
this.activity.SetBinding(Activity.IsActiveProperty, isActivityActiveBinding);
this.registerForm.SetBinding(Control.IsEnabledProperty, isEnabledBinding);
this.registerButton.SetBinding(Control.IsEnabledProperty, isEnabledBinding);
this.registerCancel.SetBinding(Control.IsEnabledProperty, isEnabledBinding);
this.backToLogin.SetBinding(Control.IsEnabledProperty, isEnabledBinding);
}