readme.md

MvvmScarletToolkit.Commands

Goals

This library aims to provide easy to use ICommand implementations for use in viewmodels.

Contents

class	summary
ConcurrentCommand<TArgument>	A Task based ICommand implementation supporting fluent configuration via IScarletCommandBuilder.

Usage

ConcurrentCommand<TArgument>

public class SomeClass
{
    public ICommand Command { get; }

    public SomeClass(IScarletCommandBuilder commandBuilder)
    {
        Command = commandBuilder
            .Create(Do, CanDo)
            .WithSingleExecution() // prevent from running multiple instances of this command at the same time
            .WithBusyNotification(BusyStack) // notify an IBusyStack instance that this command is running
            .WithAsyncCancellation() // use an async ICommand implementation for cancellation support
            .Build();
    }

    private Task Do(CancellationToken token)
    {
        return Task.Delay(2000);
    }

    private bool CanDo()
    {
        return true;
    }
}

Credits

ConcurrentCommand<TArgument> is largely based on Stephen Clearlys blog post: Async Programming : Patterns for Asynchronous MVVM Applications