Deal or Not

Learn creating a Deal or Not game using Windows App SDK with this Tutorial

Deal or Not shows how you can create simple box-opening game where every so often you can choose to accept a deal, or not and continue but risk winning a smaller amount, the last box will be the amount won, unless you took the deal, using a toolkit from NuGet using the Windows App SDK.

Step 1

Follow Setup and Start on how to get Setup and Install what you need for Visual Studio 2022 and Windows App SDK.

In Windows 11 choose Start and then find or search for Visual Studio 2022 and then select it.
Visual Studio 2022
Once Visual Studio 2022 has started select Create a new project.
Create a new project
Then choose the Blank App, Packages (WinUI in Desktop) and then select Next.
Blank App, Packages (WinUI in Desktop)
After that in Configure your new project type in the Project name as DealOrNot, then select a Location and then select Create to start a new Solution.
Configure project

Step 2

Then in Visual Studio within Solution Explorer for the Solution, right click on the Project shown below the Solution and then select Manage NuGet Packages...

Manage NuGet Packages

Step 3

Then in the NuGet Package Manager from the Browse tab search for Comentsys.Toolkit.WindowsAppSdk and then select Comentsys.Toolkit.WindowsAppSdk by Comentsys as indicated and select Install

NuGet Package Manager Comentsys.Toolkit.WindowsAppSdk

This will add the package for Comentsys.Toolkit.WindowsAppSdk to your Project. If you get the Preview Changes screen saying Visual Studio is about to make changes to this solution. Click OK to proceed with the changes listed below. You can read the message and then select OK to Install the package, then you can close the tab for Nuget: DealOrNot by selecting the x next to it.

Step 4

Then in Visual Studio within Solution Explorer for the Solution, right click on the Project shown below the Solution and then select Add then New Item…

Add New Item

Step 5

Then in Add New Item from the C# Items list, select Code and then select Code File from the list next to this, then type in the name of Library.cs and then Click on Add.

Add New Code File

Step 6

You will now be in the View for the Code of Library.cs, within this type the following Code:

using Comentsys.Toolkit.WindowsAppSdk;
using Microsoft.UI;
using Microsoft.UI.Text;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Shapes;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using Windows.UI;

public class Library
    private const string title = "Deal or Not";
    private const int rate = 5;
    private static readonly double[] amounts =
        0.01, 0.10, 0.50, 1, 5, 10, 50, 100, 250, 500, 750,
        1000, 3000, 5000, 10000, 15000, 20000, 35000, 50000, 75000, 100000, 250000
    private static readonly string[] colors =
        "0026ff", "0039ff", "004dff", "0060ff", "0073ff", "0086ff", 
        "0099ff", "0099ff", "0099ff", "00acff", "00bfff",
        "ff5900", "ff4d00", "ff4000", "ff3300", "ff2600", "ff2600", 
        "ff2600", "ff2600", "ff1a00", "ff1c00", "ff0d00",
    private static readonly string[] names = {
        "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k",
        "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v"
    private readonly Random _random = new((int)DateTime.UtcNow.Ticks);
    private readonly List<double> _values = new();

    private int _turn;
    private bool _over;
    private bool _dealt;
    private double _amount;
    private Dialog _dialog;

    // Choose, Get Color, Get Background & Get Amount

    // Get Offer & Select Box

    // Add Box

    // Add Row, Layout & New

The Class that has been defined in so far Library.cs has using for the package of Comentsys.Toolkit.WindowsAppSdk and others.

Step 7

While still in the Class for Library.cs and after the Comment of // Choose, Get Color, Get Background & Get Amount type in the following Methods:

private List<int> Choose(int minimum, int maximum, int total) =>
    Enumerable.Range(minimum, maximum)
        .OrderBy(r => _random.Next(minimum, maximum))
private Color GetColor(string hex)
    byte r = byte.Parse(hex[0..^4], NumberStyles.HexNumber);
    byte g = byte.Parse(hex[2..^2], NumberStyles.HexNumber);
    byte b = byte.Parse(hex[4..^0], NumberStyles.HexNumber);
    return Color.FromArgb(255, r, g, b);

private Color GetBackground(double amount)
    var position = Array.FindIndex(amounts, a => a.Equals(amount));
    return GetColor(colors[position]);

private Grid GetAmount(double value, Color background)
    Grid grid = new()
        Background = new SolidColorBrush(background)
    TextBlock text = new()
        Text = string.Format(new CultureInfo("en-GB"), "{0:c}", value),
        HorizontalAlignment = HorizontalAlignment.Center,
        VerticalAlignment = VerticalAlignment.Center,
        Foreground = new SolidColorBrush(Colors.White),
        Margin = new Thickness(10),
        FontSize = 33
    return grid;

Choose is used to select a list of randomised numbers, GetColor is used to get a Color from the hex representation of the colour and GetBackground will use this to get the appropriate background colour based on the amount passed in. GetAmount will be used to display an amount with an appropriate colour.

Step 8

While still in the Class for Library.cs after the Comment of // Get Offer & Select Box type in the following Methods for GetOffer to generate an offer and SelectBox used when picking a box:

private double GetOffer()
    int count = 0;
    double total = 0.0;
    foreach (double value in _values)
        total += value;
    double average = total / count;
    double offer = average * _turn / 10;
    return Math.Round(offer, 0);

private async void SelectBox(Button button, string name)
    if (!_over)
        if (_turn < names.Length)
            button.Opacity = 0;
            _amount = _values[Array.IndexOf(names, name)];
            bool response = await _dialog.ConfirmAsync(
                GetAmount(_amount, GetBackground(_amount)));
            if (response)
                if (!_dealt && _turn % rate == 0 && _turn > 1)
                    double offer = GetOffer();
                    bool accept = await _dialog.ConfirmAsync(
                        GetAmount(offer, Colors.Black), "Deal", "Not");
                    if (accept)
                        _amount = offer;
                        _dealt = true;
        if (_turn == names.Length || _dealt)
            _over = true;
    if (_over)
        object content = _dealt ?
            GetAmount(_amount, Colors.Black) :
            GetAmount(_amount, GetBackground(_amount));
        await _dialog.ConfirmAsync(content, "Game Over", null);

Step 9

While still in the Class for Library.cs after the Comment of // Add Box type the following Method:

private void AddBox(StackPanel panel, string name, int value)
    Button button = new()
        Name = $"box.{name}",
        Margin = new Thickness(5)
    button.Click += (object sender, RoutedEventArgs e) =>
        SelectBox((Button)sender, name);
    StackPanel box = new()
        Width = 100
    Rectangle lid = new()
        Height = 10,
        Fill = new SolidColorBrush(Colors.DarkRed)
    Grid front = new()
        Height = 75,
        Background = new SolidColorBrush(Colors.Red)
    Grid label = new()
        Width = 50,
        Background = new SolidColorBrush(Colors.White),
        HorizontalAlignment = HorizontalAlignment.Center,
        VerticalAlignment = VerticalAlignment.Center
    TextBlock text = new()
        TextAlignment = TextAlignment.Center,
        FontWeight = FontWeights.Bold,
        Foreground = new SolidColorBrush(Colors.Black),
        FontSize = 32,
        Text = value.ToString()
    button.Content = box;

AddBox is used to add a box that can be selected when Clicked to the game and give it a game-specific appearance using various elements to create the look-and-feel of the box that can be selected.

Step 10

While still in the Class for Library.cs after the Comment of // Add Row, Layout & New type the following Methods of AddRow which will add a row of boxes for the game, Layout which will create the look-and-feel for the game and New which will start a game.

private StackPanel AddRow()
    int count = 0;
    StackPanel panel = new();
    int[] rows = { 5, 6, 6, 5 };
    for (int r = 0; r < 4; r++)
        StackPanel places = new()
            Orientation = Orientation.Horizontal,
            HorizontalAlignment = HorizontalAlignment.Center
        for (int column = 0; column < rows[r]; column++)
            AddBox(places, names[count], count + 1);
    return panel;

private void Layout(Grid grid)
    Viewbox view = new()
        Child = AddRow()

public void New(Grid grid)
    _turn = 0;
    _amount = 0;
    _over = false;
    _dealt = false;
    _dialog = new Dialog(grid.XamlRoot, title);
    var positions = Choose(0, names.Length, names.Length);
    foreach (var position in positions)

Step 11

Within Solution Explorer for the Solution double-click on MainWindow.xaml to see the XAML for the Main Window.
Solution Explorer MainWindow.xaml

Step 12

In the XAML for MainWindow.xaml there will be some XAML for a StackPanel, this should be Removed:

<StackPanel Orientation="Horizontal" 
HorizontalAlignment="Center" VerticalAlignment="Center">
    <Button x:Name="myButton" Click="myButton_Click">Click Me</Button>

Step 13

While still in the XAML for MainWindow.xaml above </Window>, type in the following XAML:

        <Grid Margin="50" Name="Display" 
        VerticalAlignment="Center" Loaded="New"/>
    <CommandBar VerticalAlignment="Bottom">
        <AppBarButton Icon="Page2" Label="New" Click="New"/>

This XAML contains a Grid with a Viewbox which will Scale a Grid. It has a Loaded event handler for New which is also shared by theAppBarButton.

Step 14

Within Solution Explorer for the Solution select the arrow next to MainWindow.xaml then double-click on MainWindow.xaml.cs to see the Code for the Main Window.
Solution Explorer MainWindow.xaml.cs

Step 15

In the Code for MainWindow.xaml.cs there be a Method of myButton_Click(...) this should be Removed by removing the following:

private void myButton_Click(object sender, RoutedEventArgs e)
    myButton.Content = "Clicked";

Step 16

Once myButton_Click(...) has been removed, within the Constructor of public MainWindow() { ... } and below the line of this.InitializeComponent(); type in the following Code:

private readonly Library _library = new();

private void New(object sender, RoutedEventArgs e) =>

Here an Instance of the Class of Library is created then below this is the Method of New that will be used with Event Handler from the XAML, this Method uses Arrow Syntax with the => for an Expression Body which is useful when a Method only has one line.

Step 17

That completes the Windows App SDK application. In Visual Studio 2022 from the Toolbar select DealOrNot (Package) to Start the application.
DealOrNot (Package)

Step 18

Once running you can then select one of the boxes and an amount will be displayed but each five turns, then you'll have the chance to take a Deal or Not and can continue until there is just one box left, which you'll win the amount, but if you took the Deal then you win that amount instead, or you can select New to start a new game.

Deal or Not Running and Output

Step 19

To Exit the Windows App SDK application, select the Close button from the top right of the application as that concludes this Tutorial for Windows App SDK from!
Close application