public ViewModelScopeTaskBase(TViewModel viewModel, IEnumerable <IScopeAspect> aspects)
: base(aspects)
{
viewModel.PushActiveScope(this);
ViewModel = viewModel;
_aspects.Insert(0,
new PropertyNotificationScopeAspect(
(obj, props) => PropertyNotificationManager <TViewModel> .PropagateNotification(viewModel, props)));
}
/// <summary>
/// Tells whether the target property depends on the properties referenced by the param <paramref name="propertyNames"/>
/// </summary>
/// <param name="propertyNames">names of the dependency properties</param>
/// <returns>this</returns>
public ViewModelPropertyDescriptor <TOwner, TResult> DependOn(params string[] propertyNames)
{
PropertyNotificationManager <TOwner> .DependOn(PropertyName, propertyNames);
return(this);
}
/// <summary>
/// Tells whether the target property depends on the property referenced by the param <paramref name="exp"/>
/// </summary>
/// <typeparam name="TDependencyResult">The type of the dependency property</typeparam>
/// <param name="exp">Expression refering the dependency property</param>
/// <returns>this</returns>
public ViewModelPropertyDescriptor <TOwner, TResult> DependOn <TDependencyResult>(Expression <Func <TOwner, TDependencyResult> > exp)
{
PropertyNotificationManager <TOwner> .DependOn(PropertyName, ((MemberExpression)exp.Body).Member.Name);
return(this);
}
