Aucma.Scada/Aucma.Scada.UI/viewModel/AssemblyPlan/SearchCriteriaViewModel.cs

using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Command;
using HighWayIot.Config;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace Aucma.Scada.UI.viewModel.AssemblyPlan
{
    public class SearchCriteriaViewModel : ViewModelBase
    {
        private AppConfig appConfig = AppConfig.Instance;
        public SearchCriteriaViewModel()
        {
            SaveSearchCriteriaCommand = new RelayCommand(SaveSearchCriteria);
            CloseWindowCommand = new RelayCommand<object>(t => CloseWindow(t));

            init();
        }

        private ObservableCollection<string> _configurations = new ObservableCollection<string>();
        public ObservableCollection<string> Configurations
        {
            get { return _configurations; }
            set
            {
                _configurations = value;
                RaisePropertyChanged(nameof(Configurations));
            }
        }

        public RelayCommand SaveSearchCriteriaCommand { get; set; }
        public RelayCommand<object> CloseWindowCommand { get; set; }

        private void SaveSearchCriteria()
        {
            var info = _configurations.ToList();
            string items = string.Empty;
            foreach (var configuration in info)
            {
                items += configuration.ToString() + "%";
            }
            appConfig.searchItems = string.Empty;
            appConfig.searchItems = items;

            init();
        }

        private void CloseWindow(object parameter)
        {
            var window = parameter as Window;
            if (window != null)
            {
                window.Close();
            }

        }

        private void init()
        {
            Configurations = new ObservableCollection<string>();

            var searchItems = appConfig.searchItems;

            var split = searchItems.Split('%');

            foreach (var item in split)
            {
                Configurations.Add(item);
            }
        }

    }
}