Xamarin.Forms Customize Padding for a Specific View - xamarin.forms

Question

So I'm new to developing in Xamarin.Forms and I was working on a project where I had multiple views in a StackLayout on one page. I was wondering if there was a way that you could specify padding differently for each different view.
For example, there is an Image that I want to fill the entire width of the screen, but there is an Entry underneath it that I do not want to fill the entire screen. However, if I use the StackLayout.Padding attribute it sets the same padding to all views.
Is there any solution to this?
EDIT:
I forgot to mention earlier that I have already tried using the margin property but keep getting the error 'Entry' does not contain a definition for 'margin'
Here is my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
namespace HuntFishNY
{
class LandingPage : ContentPage
{
Image logo, silhouettes;
Entry username, password;
Button signIn, register;
Label title, trouble;
StackLayout heading, inputSection, footer;
public LandingPage()
{
this.BackgroundColor = Color.FromHex("#2B5237");
logo = new Image();
logo.Source = "dec_logo.png";
silhouettes = new Image();
silhouettes.Source = "sportinglicense_background.jpg";
username = new Entry();
username.HorizontalTextAlignment = TextAlignment.Start;
username.BackgroundColor = Color.White;
username.Placeholder = "Username";
username.PlaceholderColor = Color.Gray;
username.TextColor = Color.Black;
username.VerticalOptions = LayoutOptions.FillAndExpand;
password = new Entry();
password.HorizontalTextAlignment = TextAlignment.Start;
password.IsPassword = true;
password.BackgroundColor = Color.White;
password.Placeholder = "Password";
password.PlaceholderColor = Color.Gray;
password.TextColor = Color.Black;
password.VerticalOptions = LayoutOptions.FillAndExpand;
signIn = new Button();
signIn.Text = "Sign In";
signIn.BackgroundColor = Color.FromHex("#2b5237");
register = new Button();
register.Text = "Register New Account";
title = new Label();
title.TextColor = Color.FromHex("#E2AF28");
title.HorizontalTextAlignment = TextAlignment.Center;
trouble = new Label();
trouble.Text = "Having trouble signing in?";
heading = new StackLayout();
heading.VerticalOptions = LayoutOptions.Start;
heading.Children.Add(logo);
heading.Children.Add(title);
heading.Children.Add(silhouettes);
heading.Children.Add(username);
heading.Children.Add(password);
heading.Padding = new Thickness(10, 10, 20, 20);
this.Content = heading;
}
}
}

Answer 1

It seems you should be using a Grid(https://developer.xamarin.com/guides/xamarin-forms/user-interface/layouts/grid/) instead of a StackLayout.
You can achieve different row height using RowDefinitions within a Grid.
You can also add a StackLayout inside another StackLayout.
That said, if your Entry do not have a Margin it´s probably because you're using an outdated version of Xamarin.Forms (Margin was introduced in 2.1 or 2.2. Current is 2.3)