I want to get the Property Name (string) or PropertyInfo (object) of the binded proberty inside a TypedBinding....

For now I use this and it works only if parent doesn't have a x:DataType

 private static MethodInfo _bindablePropertyGetContextMethodInfo = typeof(BindableObject).GetMethod("GetContext", BindingFlags.NonPublic | BindingFlags.Instance);
        private static FieldInfo _bindablePropertyContextBindingFieldInfo;
        public static Binding GetBinding(this BindableObject self, BindableProperty property)
        object bindablePropertyContext = _bindablePropertyGetContextMethodInfo.Invoke(self, new[] { property });
        if (bindablePropertyContext != null)
            FieldInfo propertyInfo = _bindablePropertyContextBindingFieldInfo =
                _bindablePropertyContextBindingFieldInfo ??
                    bindablePropertyContext.GetType().GetField("Binding");
            var valued = propertyInfo.GetValue(bindablePropertyContext);
            if (valued is Binding)
                return (Binding)valued;
            else return null;
        return null;
if it has a datatype the valued is of type   
{Xamarin.Forms.Internals.TypedBinding<ViewModelNameAndPath,string>}  

And it can't be casted to Binding, if I cast to BaseBinding it doesn't have the Path property.... How can I achieve this ?  
Thanks  
												
I want to get the property name that was binded...
Let's say I bind a property Testo so I'll have a Step = {Binding Testo}, but on my control I wanted to know what was the real name of the property binded to my BindableProperty Step in this case Testo.  

In my control i have a bindable property
public static readonly BindableProperty StepProperty =  

BindableProperty.Create(propertyName: nameof(Step),  

returnType: typeof(string),  

declaringType: typeof(SsNumericEntry),  

defaultValue: "");
I think it is quite difficult to know the exact name of the property binded inside the control..
												
Testo does not have to be a bindable property, so the "real" name is the same name. It likely has a backing field [1] and calls OnPropertyChanged, but that is not really necessary if the data won't change at runtime.    
string _testo; 
   public string Testo 
        get { return _testo; } 
            if (_testo!= value) 
                _testo= value; 
                OnPropertyChanged(); 
												
Thanks for reply,   

I have changed the logic in that component. It was a reusable component that have bindable properties and I was binding another viewmodel to the component, so when I wanted to change the text                  OnPropertyChanged();  was not working because it was on a different viewmodel and I was trying to change with reflection the value inside another viewmodel ( the parent ). But I think this is a wrong pattern so I have changed all logic inside in order to not bind another viewmodel inside component.