I am having problems on making it so that, when you press the “Plus” button (on the Home.xaml page), it will trigger an event that will turn a StackLayout’s (on the Cart.xaml page) visibility property into True:

(Note: I am using VS 2022, .NET MAUI)

Home.xaml:

                    <Button Text="+" 
                            BackgroundColor="Green"
                            TextColor="White"
                            FontSize="Large"
                            HorizontalOptions="EndAndExpand"
                            VerticalOptions="Center"
                            Margin="-10,0"
                            Clicked="Increased1"/>

Cart.xaml:

                        <StackLayout Orientation="Horizontal"
                                     IsVisible="False">

                            <Label Text="Fried Chicken"
                               HorizontalOptions="Start"
                               FontSize="Large"
                               TextColor="Black">
                        </Label>

                        <Label Text="[AMOUNT]"
                               HorizontalOptions="EndAndExpand"
                               VerticalOptions="CenterAndExpand"
                               FontSize="Small"
                               TextColor="Green">
                        </Label>
                        
                        </StackLayout>

I have tried using Messaging Centers, but realized they were outdated.

What I’m expecting to happen: When you press the button, it will turn the visibility option of a StackLayout from False to True.