Build a Simple Invoice App with .NET MAUI – Step by Step

In this video, you'll learn how to build a simple invoice app using .NET MAUI — step by step!
You’ll learn how to design the layout in MainPage.xaml, create data models like Order and OrderDetail, and use INotifyPropertyChanged to automatically update the UI when values change.

We’ll also build a clean layout using ScrollView, Grid, and CollectionView to display invoice items, calculate totals.

By the end, you’ll have a fully functional invoice app that lets you add, remove, and total up items in real time.

👉 In the next video, we’ll take this further and learn how to print or export the invoice as a PDF file.

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