System.Mvvm.Hosting

Microsoft.Extensions.Hosting helper library and System.Mvvm extensions

Functionality

• Centralised ServiceProvider Host instance
  • Works with Web, Mobile and Desktop applications
  • Simplified initialisation methods for creating and configuring the ServiceProvider host
• Extensions for System.Mvvm.ViewModel to make it easy to get Services from the ServiceProvider host
• Support for .Net Standard 2.0 and .NET 5.0

ServiceHost

The ServiceHost class is the centralised wrapper for a global instance of IHost that can be used with ASP.NET core applications, Desktop and Mobile applications too.

The Init method and its many overloads, simplifies and standardises the initialisation and configuration of the IHost instance.

For example, this is the simplest way to configure, build and optionally start a instance of IHost

using System.Mvvm;
....

protected override async void OnStartup(StartupEventArgs e)
{
    base.OnStartup(e);

    await ServiceHost
        .Init(ConfigureServices)
        .StartAsync();
}

 void ConfigureServices(HostBuilderContext ctx, IServiceCollection services)
 {
     services.AddCoreUI();
     services.TryAddSingleton<ITestCustomUIProvider, TestCustomUIProvider>();
 }

To access retrieve a service, use ServiceHost.GetRequiredService<T>.

using System.Mvvm;
...

var customUI = ServiceHost.GetRequiredService<ITestCustomUIProvider>();
customUI.SayHello();

You can also ServiceHost.Host can be used to access the IHost instance directly and uses the standad access methods.