/// <summary>
/// This method is used to configure the dependencies using dotnetcore built-in DI container!
/// </summary>
private void ConfigureServices()
{
// Binds a single instance of the PopupMenuViewModel.
DI.ServiceCollection.AddSingleton <PopupMenuViewModel>();
// Bind the services that is used via DI.
DI.ServiceCollection.AddTransient <IDirectoryService, MSWindowsDirectoryService>();
// *Binds single instances of the view models as required;
// This should remain in WPF Project unless cross application syncing isn't required;
DI.ServiceCollection.AddSingleton <HomePageViewModel>();
DI.ServiceCollection.AddSingleton <ViewFilePageViewModel>();
DI.ServiceCollection.AddSingleton <SideMenuControlViewModel>();
// Build the Kernel
DI.BuildProvider();
}