BPASmartClient/BPASmart.RecipeManagement/ViewModel/PropertySettingViewModel.cs

using BPASmart.Model;
using BPASmartClient.Helper;
using Microsoft.Toolkit.Mvvm.ComponentModel;
using Microsoft.Toolkit.Mvvm.Input;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BPASmart.RecipeManagement.ViewModel
{
    public class PropertySettingViewModel : ObservableObject
    {
        public ObservableCollection<Property> properties { get; set; } = Json<LocalMaterails>.Data.PorpertyCollections;

        public string PropertyName { get { return _propertyName; } set { _propertyName = value; OnPropertyChanged(); } }
        private string _propertyName;

        public string PropertyDescription { get { return _propertyDescription; } set { _propertyDescription = value; OnPropertyChanged(); } }
        private string _propertyDescription;

        public string ErrorName { get { return _errorName; } set { _errorName = value; OnPropertyChanged(); } }
        private string _errorName;

        public RelayCommand SaveCommand { get; set; }

        public RelayCommand<object> DeleteCommand { get; set; }

        private void Delete(object o)
        {
            if (o == null) return;
            if (o is string id)
            {
                var res = properties.FirstOrDefault(p => p.PropertyId == id);
                if (res != null)
                {
                    properties.Remove(res);
                }
            }
        }

        public PropertySettingViewModel()
        {
            SaveCommand = new RelayCommand(() =>
            {
                if (PropertyName == null)
                {
                    ErrorName = "属性名称不能为空";
                    return;
                }
                if (PropertyDescription == null)
                {
                    ErrorName = "请添加属性说明";
                    return;
                }
                if (properties.FirstOrDefault(p => p.PropertyName == PropertyName) != null)
                {
                    ErrorName = "属性名重复";
                    return;
                }

                properties.Add(new Property
                {
                    PropertyId = Guid.NewGuid().ToString(),
                    PropertyDescription = PropertyDescription,
                    PropertyName = PropertyName
                });
                Json<LocalMaterails>.Save();
                ErrorName = String.Empty;
            });
            DeleteCommand = new RelayCommand<object>(Delete);
        }
    }
}