Benday.Presentation - MAUI MVVM Toolkit

MVVM toolkit for .NET MAUI that reduces boilerplate and simplifies data binding.

Written by Benjamin Day Pluralsight Author | Microsoft MVP | Scrum.org Professional Scrum Trainer https://www.benday.com https://www.slidespeaker.ai info@benday.com YouTube: https://www.youtube.com/@_benday

Key Features

• ViewModelField - Wrap form fields with built-in support for labels, validation messages, visibility, and enabled state
• SelectableCollectionViewModel - Observable collections with automatic selection tracking (single or multi-select), drag-and-drop reordering via Move(), and selection interception via BeforeSetSelectedItem
• MessagingViewModelBase - Display message boxes and dialogs from your ViewModels
• ExceptionHandlingRelayCommand - Commands that catch and display exceptions automatically
• Value Converters - Common converters for MAUI data binding including VisibleIfNullValueConverter and VisibleIfNotNullValueConverter

Suggestions, Problems, or Bugs?

Got ideas for features you'd like to see? Found a bug? Let us know by submitting an issue https://github.com/benday-inc/mvvm-presentation/issues. Want to contribute? Submit a pull request.

Installing

dotnet add package Benday.Presentation

Quick Start

public class MyViewModel : ViewModelBase { public ViewModelField<string> FirstName { get; } = new("First Name"); public ViewModelField<string> LastName { get; } = new("Last Name"); public void Validate() { FirstName.IsValid = !string.IsNullOrEmpty(FirstName.Value); FirstName.ValidationMessage = FirstName.IsValid ? "" : "Required"; } }

Documentation

Full documentation: https://benday-inc.github.io/mvvm-presentation/

Related Packages

• Benday.Presentation.Controls - Ready-to-use MAUI controls that bind to ViewModelField objects