AHAQ_QGNH/AnQing/ViewModel/SetUpViewModel.cs

using AnQing.Commons;
using AnQing.Model;
using AnQing.Models;
using RGD.DBUtility;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
using System.Xml;

namespace AnQing.ViewModel
{
    public class SetUpViewModel: INotifyPropertyChanged
    {
        private string _videoIP1 =Common.GetSetting("VideoIP1");

        public string VideoIP1
        {
            get => _videoIP1;
            set
            {
                if (_videoIP1 != value)
                {
                    _videoIP1 = value;
                    OnPropertyChanged(nameof(VideoIP1));
                }
            }
        }
        private string _videoIP2 = GetSetting("VideoIP2");

        public string VideoIP2
        {
            get => _videoIP2;
            set
            {
                if (_videoIP2 != value)
                {
                    _videoIP2 = value;
                    OnPropertyChanged(nameof(VideoIP2));
                }
            }
        }
        private string _imagePath = GetSetting("ImagePath");

        private ObservableCollection<IMAGEINFO> _dgScanMain = new ObservableCollection<IMAGEINFO>();
        public ObservableCollection<IMAGEINFO> DgScanMain
        {
            get => _dgScanMain;
            set
            {
                if (_dgScanMain != value)
                {
                    _dgScanMain = value;
                    OnPropertyChanged();
                }
            }
        }
        private IMAGEINFO _selectedItem;
        public IMAGEINFO SelectedItem
        {
            get { return _selectedItem; }
            set
            {
                _selectedItem = value;
                OnPropertyChanged(nameof(SelectedItem));
            }
        }
        public SetUpViewModel()
        {
            LoadScanMain();
        }
        private void LoadScanMain()
        {
            Task.Run(() =>
            {
                DataView dv = DbHelperSQL.Query("select * from IMAGEINFO").Tables[0].DefaultView;
                DgScanMain = Common.ConvertDataViewToObservableCollection<IMAGEINFO>(dv);
                //DgScanMain.Add(new IMAGEINFO() { x = 0, y = 0, width = 0, height = 0, index = 0 });
            });
        }
        public string ImagePath
        {
            get => _imagePath;
            set
            {
                if (_imagePath != value)
                {
                    _imagePath = value;
                    OnPropertyChanged(nameof(ImagePath));
                }
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        private ICommand buttonQuitCommand;
        public ICommand ButtonQuitCommand => buttonQuitCommand ??= new RelayCommand(ButtonSave);
        /// <summary>
        /// 退出页面 
        /// </summary>
        private void ButtonSave()
        {
            try
            {
                SetSetting("VideoIP1", VideoIP1);
                SetSetting("VideoIP2", VideoIP2);
                SetSetting("ImagePath", ImagePath);

                App.Restart();
            }
            catch (Exception ex)
            {
                // 处理异常
            }
        }
        public static void SetSetting(string key, string value)
        {
            string configFile = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(configFile);

            XmlNode appSettingsNode = xmlDoc.SelectSingleNode("//appSettings");

            if (appSettingsNode != null)
            {
                XmlNode settingNode = appSettingsNode.SelectSingleNode($"add[@key='{key}']");
                if (settingNode != null)
                {
                    settingNode.Attributes["value"].Value = value;
                }
                else
                {
                    XmlElement newSetting = xmlDoc.CreateElement("add");
                    newSetting.SetAttribute("key", key);
                    newSetting.SetAttribute("value", value);
                    appSettingsNode.AppendChild(newSetting);
                }
                xmlDoc.Save(configFile);
            }
        }
        public static string GetSetting(string key)
        {
            return ConfigurationManager.AppSettings[key];
        }
    }
}