/// <summary>
/// Creates an <see cref="ObservableValue{T}"/> available via data binding from any page,
/// affected by a source observable.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="name"></param>
/// <param name="inputObservableSelector"></param>
/// <param name="initialValue"></param>
/// <returns></returns>
public static ObservableValue <T> CreateGlobalProperty <T>(string name, Func <IObservable <T> > inputObservableSelector, T initialValue = default(T))
{
var observableValue = new ObservableValue <T>(initialValue);
BaseViewModel.AddGlobalProperty <T>(name, observableValue);
observableValue.AddInput(inputObservableSelector());
return(observableValue);
}
/// <summary>
/// Creates an <see cref="ObservableValue{T}"/> available via data binding, affected by a source observable, with late materialization
/// of the observable logic.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="viewModel"></param>
/// <param name="name"></param>
/// <param name="inputObservableSelector"></param>
/// <param name="initialValue"></param>
/// <returns></returns>
public static ObservableValue <T> CreateProperty <T>(
this BaseViewModel viewModel,
string name,
Func <IObservable <T>, IObservable <T> > inputObservableSelector,
T initialValue = default(T))
{
var observableValue = new ObservableValue <T>(initialValue);
viewModel.AddProperty <T>(name, observableValue);
viewModel.AddTrigger(ViewModelState.Loaded, () => observableValue.AddInput(inputObservableSelector));
return(observableValue);
}
