Xamarin - binding to variable in datatemplate - xamarin

Question

How do I bind a value from my object property to a variable so that I can pass it as an argument/parameter for my method "setFavoriteProduct(id_product, favnumber) which is triggered by my button "choiceButton". I require the property value "id_product".
When I bind it to Label "id_productLabel" then I can see it in the View just fine but I need to use the string value in my "setFavoriteProduct" function.
listView.ItemTemplate = new DataTemplate(() =>
{
Image productImage = new Image();
productImage.SetBinding(Image.SourceProperty, "imageURL");
//productImage.HeightRequest = 60;
productImage.HeightRequest = 120;
//productImage.WidthRequest = 60;
productImage.WidthRequest = 120;
productImage.Aspect = Aspect.AspectFit;
Label nameLabel = new Label();
nameLabel.SetBinding(Label.TextProperty, "name");
Label id_productLabel = new Label();
id_productLabel.SetBinding(Label.TextProperty, "id_product");
id_productLabel.IsVisible = true;
Button choiceButton = new Button();
choiceButton.Text = "Vali";
choiceButton.Clicked += (sender, args) => setFavoriteProduct(
id_product,
favnumber
);
return new ViewCell
{
View = new StackLayout
{
Padding = new Thickness(0, 5),
Orientation = StackOrientation.Horizontal,
Children = { productImage, id_productLabel , nameLabel, choiceButton }
}
};

Answer 1

the simplest way to do this is to get the BindingContext from the sender (button) and then get the property from that
choiceButton.Clicked += (sender, args) => {
var context = (MyClass)((Button)sender).BindingContext;
var id = context.id_product;
setFavoriteProduct(id,favnumber);
};
alternately, you could use the Button's Command and CommandParameter properties instead of the Clicked event