MauiCourse/AdventureWorks.MAUI/CommandClasses/ProductViewModelCommands.cs

using AdventureWorks.EntityLayer;
using AdventureWorks.ViewModelLayer.ViewModelClasses;
using Common.Library;
using System.Windows.Input;

namespace AdventureWorks.MAUI.CommandClasses
{
    public class ProductViewModelCommands : ProductViewModel
    {
        #region Constructors
        public ProductViewModelCommands() : base()
        {
        }
        public ProductViewModelCommands(IRepository<Product> repo) : base(repo)
        {
        }
        #endregion

        public ICommand SaveCommand { get; private set; }
        public ICommand EditCommand { get; private set; }

        private bool _IsSaveCommandEnabled = true;
        public bool IsSaveCommandEnabled
        {
            get { return _IsSaveCommandEnabled; }
            set
            {
                _IsSaveCommandEnabled = value;
                RaisePropertyChanged(nameof(IsSaveCommandEnabled));
            }
        }

        public override void Init()
        {
            base.Init();
            SaveCommand = new Command(async () => await SaveAsync(), () => IsSaveCommandEnabled);
            EditCommand = new Command<int>(async (id) => await EditAsync(id), (id) => id > 0);
        }

        public async Task<bool> SaveAsync()
        {
            var ret = base.Save();
            if (ret)
            {
                await Shell.Current.GoToAsync("..");
            }

            return ret;
        }

        protected async Task EditAsync(int id)
        {
            await Shell.Current.GoToAsync($"{nameof(Views.ProductDetailView)}?id={id}");
        }

        public void LoadProducts()
        {
            Get();
        }
        public void LoadProductById(int id)
        {
            ProductObject = Get(id);
        }
    }
}