MZ.Utils.ViewModel 1.0.0

MZ.Utils.ViewModel

Base Maui ViewModel to Help with Property Relationships

Purpose

This library was created to eliminate some of the boilerplating that is needed to have a useful viewmodel in Xamarin (or WPF).

Basic Usage

Create a viewmodel that extends BaseViewModel to have access to the built in features of the library.

using MZ.Utils.ViewModel;

// Other code goes here ... namespace, etc.

public class ExampleViewModel : BaseViewModel {
	
	//Basic Examples
	public string Title { 
		get => GetValue<string>(); 
		set => SetValue(value); 
	}

	public int Count {
		get => GetValue<int>();
		set => SetValue(value);
	}
}

Extended Usage (Relationships)

using MZ.Utils.ViewModel;
using MZ.Utils.ViewModel.Attributes;

//...

public class RelationshipViewModel : BaseViewModel {
	//Basic Examples
	//This value affects IsValid
	public string Title { 
		get => GetValue<string>(); 
		set => SetValue(value); 
	}

	//This Value Affects both Message and IsValid
	[Affects(nameof(Message))]
	public int Count {
		get => GetValue<int>();
		set => SetValue(value);
	}

	[AffectedBy(nameof(Title), nameof(Count))]
	public bool IsValid => Count > 0 && !string.IsNullOrEmpty(Title);

	//This one could also be AffectedBy Count.
	public string Message => $"The total count is: {Count}";
}