public IReactiveBinding <TView, TViewModel, TProp> BindCommand <TView, TViewModel, TProp, TControl, TParam>(
TViewModel viewModel,
TView view,
Expression <Func <TViewModel, TProp> > vmProperty,
Expression <Func <TView, TControl> > controlProperty,
IObservable <TParam> withParameter,
string toEvent = null)
where TViewModel : class
where TView : class, IViewFor <TViewModel>
where TProp : ICommand
{
var vmExpression = Reflection.Rewrite(vmProperty.Body);
var controlExpression = default(Expression);
if (controlProperty == null)
{
controlExpression = Reflection.getViewExpression(view, vmExpression);
}
else
{
controlExpression = Reflection.Rewrite(controlProperty.Body);
}
var source = Reflection.ViewModelWhenAnyValue(viewModel, view, vmExpression).Cast <TProp>();
IDisposable bindingDisposable = bindCommandInternal(source, view, controlExpression, withParameter, toEvent);
return(new ReactiveBinding <TView, TViewModel, TProp>(view, viewModel, controlExpression, vmExpression,
source, BindingDirection.OneWay, bindingDisposable));
}
public IReactiveBinding <TView, TViewModel, TProp> BindCommand <TView, TViewModel, TProp, TControl, TParam>(
TViewModel viewModel,
TView view,
Expression <Func <TViewModel, TProp> > vmProperty,
Expression <Func <TView, TControl> > controlProperty,
Func <TParam> withParameter,
string toEvent = null)
where TViewModel : class
where TView : class, IViewFor <TViewModel>
where TProp : ICommand
{
var vmExpression = Reflection.Rewrite(vmProperty.Body);
var controlExpression = default(Expression);
if (controlProperty == null)
{
controlExpression = Reflection.getViewExpression(view, vmExpression);
}
else
{
controlExpression = Reflection.Rewrite(controlProperty.Body);
}
var source = Reflection.ViewModelWhenAnyValue(viewModel, view, vmExpression).Cast <TProp>();
IDisposable bindingDisposable = bindCommandInternal(source, view, controlExpression, Observable.Empty <object>(), toEvent, cmd => {
var rc = cmd as IReactiveCommand;
if (rc == null)
{
return(new RelayCommand(cmd.CanExecute, _ => cmd.Execute(withParameter())));
}
var ret = ReactiveCommand.Create(rc.CanExecuteObservable);
ret.Subscribe(_ => rc.Execute(withParameter()));
return(ret);
});
return(new ReactiveBinding <TView, TViewModel, TProp>(view, viewModel, controlExpression, vmExpression,
source, BindingDirection.OneWay, bindingDisposable));
}
