Counter App using XAML and MVUX

Download the complete XAML + MVUX sample

[!include[Intro](xref:Uno.Workshops.Counter.Intro-Inline)]

In this tutorial you will learn how to:

Create a new Project with Uno Platform using Visual Studio Template Wizard or the dotnet new command
Add elements to the XAML file to define the layout of the application
Add code to the C# file to implement the application logic using the Model-View-Update-eXtended (MVUX) pattern
Use data binding to connect the UI to the application logic

To complete this tutorial you don't need any prior knowledge of the Uno Platform, XAML, or C#.

[!include[VS](xref:Uno.Workshops.Counter.Create-Inline)]

Visual Studio
Command Line

Note

If you don't have the Uno Platform Extension for Visual Studio installed, follow these instructions.

Launch Visual Studio and click on Create new project on the Start Window. Alternatively, if you're already in Visual Studio, click New, Project from the File menu.
Type Uno Platform in the search box
Click Uno Platform App, then Next
Name the project Counter and click Create

At this point you'll enter the Uno Platform Template Wizard, giving you options to customize the generated application. For this tutorial, we're only going to configure the markup language and the presentation framework.

Select Blank in Presets selection
Select the Presentation tab and choose MVUX
Select the Markup tab and choose XAML

Before completing the wizard, take a look through each of the sections and see what other options are available. You can always come back and create a new project with different options later. For more information on all the template options, see Using the Uno Platform Template.

Click Create to complete the wizard

The template will create a solution with a single cross-platform project, named Counter, ready to run.

Note

If you don't have the Uno Platform dotnet new templates installed, follow dotnet new templates for Uno Platform.

From the command line, run the following command:

.NET CLI

dotnet new unoapp -preset blank -presentation mvux -markup xaml -o Counter

This will create a new folder called Counter containing the new application.

If you want to discover all the options available in the unoapp template, run the following command:

.NET CLI

dotnet new unoapp -h

Also, for more information on all the template options, see Using the Uno Platform Template.

[!include[Counter Solution](xref:Uno.Workshops.Counter.Solution-Inline)]

Counter Solution

[!include[Main Window](xref:Uno.Workshops.Counter.MainWindow-Inline)][!include[Main Page - XAML](xref:Uno.Workshops.Counter.Xaml.MainPage-Inline)][!include[Main Page - Layout](xref:Uno.Workshops.Counter.Mainpage-Layout-Inline)][!include[Main Page - Image Xaml](xref:Uno.Workshops.Counter.Xaml.Image-Inline)][!include[Main Page - Change Layout](xref:Uno.Workshops.Counter.Mainpage-Change-Layout-Inline)][!include[Main Page - Other Elements](xref:Uno.Workshops.Counter.Xaml.Elements-Inline)][!include[Main Model](xref:Uno.Workshops.Counter.Mvux)]

Data Binding

Now that we have the MainModel class, we can update the MainPage to use data binding to connect the UI to the application logic.

[!include[Main Page - Data Binding Xaml](xref:Uno.Workshops.Counter.Xaml.DataBinding-Inline)][!include[Wrap Up](xref:Uno.Workshops.Counter.WrapUp-Inline)]

If you want to see the completed application, you can download the source code from GitHub.