MVVM # Episode 1

using ViewModels;
using Views;
namespace Controllers
{
	public partial class CustomerController : ICustomerController
	{
		/// <summary>
		/// The ShowView methods are private. A ViewModel may request some action to take place, 
		/// but the Controller will decide whether this action will result in some view being 
		/// shown.
		/// e.g. clicking a 'Search' button on a form may result in a Command being sent from the
		/// View (via binding) to the ViewModel; the Command handler then asks the Controller to
		/// Search for whatever.
		/// The controller may (for example) use a service to return a collection of objects. if there
		/// is only a single object, then it may return a single object rather than popping up a search
		/// view only to have the User be presented with a single action from which to select.
		/// </summary>

		#region Show Views

		private void ShowViewCustomerSelection()
		{
			CustomerSelectionView v = GetCustomerSelectionView();
			v.ShowInWindow(false, "MVVM# Customer Selection");
		}
		#endregion

		#region Get Views
		private CustomerSelectionView GetCustomerSelectionView(BaseViewModel daddy = null)
		{
			CustomerSelectionView v = new CustomerSelectionView();
			CustomerSelectionViewModel vm = new CustomerSelectionViewModel(this, v);

			if (daddy != null)
			{
				daddy.ChildViewModels.Add(vm);
			}

			return v;
		}


		private BaseView GetCustomerEditView(int customerId, BaseViewModel daddy)
		{
			CustomerEditView v = new CustomerEditView();
			CustomerEditViewModel vm = new CustomerEditViewModel(this, v);

			vm.ViewData = GetCustomerEditViewData(customerId);

			if (daddy != null)
			{
				daddy.ChildViewModels.Add(vm);
			}

			return v;
		}


		#endregion



	}
}