Exemplo de ContentPage em MAUI.Net usando apenas C#

EcommercePage.cs

using Microsoft.Maui.Controls;

public class EcommercePage : ContentPage
{
    public EcommercePage()
    {
        // Layout principal da página
        Content = new StackLayout
        {
            Children =
            {
                CreateHeader(),
                CreateBody(),
                CreateFooter()
            }
        };
    }
    
    private StackLayout CreateHeader()
    {
        return new StackLayout
        {
            BackgroundColor = Colors.LightGray,
            Padding = new Thickness(10),
            Children =
            {
                new Label
                {
                    Text = "Loja Virtual",
                    FontSize = 24,
                    HorizontalOptions = LayoutOptions.Center,
                    TextColor = Colors.Black
                }
            }
        };
    }
    
    private StackLayout CreateBody()
    {
        return new StackLayout
        {
            Spacing = 20,
            Padding = new Thickness(10),
            Children =
            {
                CreateProductSection("Promoções", Colors.LightPink),
                CreateProductSection("Novidades", Colors.LightBlue),
                CreateProductSection("Mais Vendidos", Colors.LightGreen)
            }
        };
    }
    
    private StackLayout CreateFooter()
    {
        return new StackLayout
        {
            BackgroundColor = Colors.LightGray,
            Padding = new Thickness(10),
            Children =
            {
                new Label
                {
                    Text = "© 2025 Loja Virtual - Todos os direitos reservados",
                    FontSize = 14,
                    HorizontalOptions = LayoutOptions.Center,
                    TextColor = Colors.Black
                }
            }
        };
    }

    private StackLayout CreateProductSection(string title, Color backgroundColor)
    {
        return new StackLayout
        {
            BackgroundColor = backgroundColor,
            Padding = new Thickness(10),
            Children =
            {
                new Label
                {
                    Text = title,
                    FontSize = 18,
                    FontAttributes = FontAttributes.Bold,
                    TextColor = Colors.White
                },
                new Label
                {
                    Text = "Lista de produtos aqui...",
                    TextColor = Colors.White
                }
            }
        };
    }
}