Namespace Dmnk.Blazor.Mvvm

This library provides some base types to inherit from in a Blazor application, to implement the MVVM pattern. It makes no assumptions about the implementation of the ViewModel, only that it must implement INotifyPropertyChanged and that commands implement ICommand.

Example

// You don't have to use the community toolkit, but we will use it in this example here.
// If you are using the community toolkit, you probably also want the 
// Dmnk.Blazor.Mvvm.CommunityToolkit package, which allows binding to async relay commands.
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;

public class MyViewModel : ObservableObject
{
    [ObservableProperty]
    private string _text;
    
    [RelayCommand]
    private void DoSomething()
    {
        Text = "Hello World!";
    }
}

@inherits MvvmComponentBase<MyViewModel>

<p>@Vm.Text</p>

<button @onclick="@Vm.DoSomethingCommand.Bind(this)">Click me</button>

Classes

AbstractMvvmComponentBase<T>

Invokes StateHasChanged when ViewModel fires INotifyPropertyChanged and when any property of type ICommand fires CanExecuteChanged.

CommandExtensions

See Bind<T>(ICommand, AbstractMvvmComponentBase<T>)

MvvmComponentBase<T>

Invokes StateHasChanged when ViewModel fires INotifyPropertyChanged and when any property of type ICommand fires CanExecuteChanged.

The ViewModel is set as a required parameter(Vm).

OptionalMvvmComponentBase<T>

Invokes StateHasChanged when ViewModel fires INotifyPropertyChanged and when any property of type ICommand fires CanExecuteChanged.

The ViewModel is set as an optional parameter(Vm).

OwningMvvmComponentBase<T>

Invokes StateHasChanged when ViewModel fires INotifyPropertyChanged and when any property of type ICommand fires CanExecuteChanged.

The ViewModel is set as a property that isn't a parameter(Vm).

ReflectionAutoViewModelRegistry

Like ViewModelRegistry, but with an additional method AutoRegister() that automatically registers all ViewModels and their corresponding Views based on reflection.

You may prefer using the source generator - see ViewModelForAttribute.

RegisteredViewFor<TViewModel>

Blazor component that serves as a marker for associating a ViewModel type with a View type in the ViewModelRegistry.

ViewModelForAttribute

Marks a ViewModel to be automatically registered with its corresponding view component. The source generator will create registration code for this pairing. See https://dominiksta.github.io/Dmnk.Toolkit/api/Dmnk.Blazor.Mvvm.SourceGen.html.

ViewModelRegistry

Interfaces

IViewModelRegistry

Registry for associating ViewModel types with their corresponding View types.