Binding Noesis::Color with VM

12 Aug 2021, 16:53

Hello!
I have a ColorPicker UserControl with Noesis::Color DependencyProperty.

NS_IMPLEMENT_REFLECTION(ColorPicker, "d.ColorPicker")
{
    Noesis::DependencyData* data = NsMeta<Noesis::DependencyData>(Noesis::TypeOf<SelfClass>());
    data->RegisterProperty<Noesis::Color>(CurrentColorProperty, "CurrentColor", Noesis::PropertyMetadata::Create(Noesis::Color{}));
}

I also have a ViewModel inherited from INotifyPropertyChanged. It has a Noesis::Color field that I "register" via NsProp. The getter returns const Noesis::Color&, since otherwise it gave me compilation errors.

const Noesis::Color& SomeVM::GetColor() const
{
    return _color;
}
void SomeVM::SetColor(const Noesis::Color& v)
{
    if (_color!= v)
    {
        _color= v;
        OnPropertyChanged("Color");
    }
}
NS_BEGIN_COLD_REGION
NS_IMPLEMENT_REFLECTION(SomeVM, "d.SomeVM")
{
    NsProp("Color", &SomeVM::GetColor, &SomeVM::SetColor);
}
NS_END_COLD_REGION

I want to bind CurrentColor DependencyProperty with the ViewModel field.

 <d:ColorPicker CurrentColor="{Binding SomeViewModel.Color, Mode=TwoWay}"/>

But when I try to bind, I get the error:

Unable to convert 'Binding SomeViewModel.Color, Mode=TwoWay}' to a valid value for property d.ColorPicker.CurrentColor.

What am I doing wrong? Perhaps the problem is that the getter returns a const Noesis::Color& and a converter is needed?

12 Aug 2021, 17:10

Sorry, guys.
Once I made a post, I found a problem that is beyond the scope of the question. :D

12 Aug 2021, 17:47

Great! Thanks for closing this :)

Binding Noesis::Color with VM Topic is solved

Binding Noesis::Color with VM

Re: Binding Noesis::Color with VM

Re: Binding Noesis::Color with VM

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