How to bind a CommandParameter in a ContentView to an element in the parent ContentPage in Xamarin Forms

Question

I have a parent ContentPage with several ContentViews in separate files. I am trying to pass as reference an element in the parent ContentView to a CommandParameter in one

Answer 1

You could check the following code

in AddressChipView.xaml

Since you had used Custom ContentView , you need use bindable property to binding value between the elements in ContentView and Parent ContentPage

in AddressChipView.xaml.cs

public static readonly BindableProperty AddressSelectionChangedCommandProperty =
            BindableProperty.Create(nameof(AddressSelectionChangedCommand), typeof(ICommand), typeof(AddressChipView));

        public ICommand AddressSelectionChangedCommand
        {
            get => (ICommand)GetValue(AddressSelectionChangedCommandProperty );
            set => SetValue(AddressSelectionChangedCommandProperty , value);
        }

        public static BindableProperty CurrentMapViewProperty =
            BindableProperty.Create(nameof(CurrentMapView), typeof(object), typeof(AddressChipView));

        public object CurrentMapView
        {
            get => (object)GetValue(CurrentMapViewProperty );
            set => SetValue(CurrentMapViewProperty , value);
        }

        //... other bindable property  
       

Now you can binding it in ContentPage