思维导图
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主界面视图模型源码
using MaterialDesignThemes.Wpf;using Newtonsoft.Json.Linq;using System;using System.IO;using System.Text;using NormalizingApp.MVVM;using NormalizingApp.Models;using NormalizingApp.Messagebox;using System.Threading;namespace NormalizingApp.ViewModels{/// <summary>/// 初始化界面上菜单选项的ListView控件后台数据，把所有窗体的名字和内容传递到ListView进行选择/// </summary>class MainWindowViewModel : NotifyObject{//定义Listbox绑定的数据源属性public Models.MainWindowItem[] DemoItems { get; } //绑定的视图模型 数组 demo项：名称 内容 private Thread uiThread; //开一个线程更新UI绑定属性//软件版本号private double _versionNumber;public double VersionNumber{get { return _versionNumber; }set{_versionNumber = value;RaisePropertyChanged("VersionNumber");}}//通讯连接状态private bool _connectionState;public bool ConnectionState{get { return _connectionState; }set{_connectionState = value;RaisePropertyChanged("ConnectionState");}}//焊缝编号显示private string _productNumber;public string ProductNumber{get { return _productNumber; }set{_productNumber = value;RaisePropertyChanged("ProductNumber");}}//系统时间显示private string _systempDateTime;public string SystempDateTime{get { return _systempDateTime; }set{_systempDateTime = value;RaisePropertyChanged("SystempDateTime");}}//通讯延时显示private int _connectionDelay;public int ConnectionDelay{get { return _connectionDelay; }set{_connectionDelay = value;RaisePropertyChanged("ConnectionDelay");}}//窗体关闭时执行事件private MyCommand _windowClosing;public MyCommand WindowClosing{get{if (_windowClosing == null)_windowClosing = new MyCommand(new Action<object>(o =>{// 保存当前的颜色选择var p = new PaletteHelper().QueryPalette();using (StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory + @"..\..\Data\Palette\Palette.txt", false, Encoding.UTF8)){// 从当前颜色选择构建 json对象sw.Write(JObject.FromObject(p).ToString());}}));return _windowClosing;}}//窗体载入时执行事件private MyCommand _windowLoaded;public MyCommand WindowLoaded{get{if (_windowLoaded == null)_windowLoaded = new MyCommand(new Action<object>(o =>{// 加载原先保存的主题配色if (File.Exists(AppDomain.CurrentDomain.BaseDirectory + @"..\..\Data\Palette\Palette.txt")){using (StreamReader sr = new StreamReader(AppDomain.CurrentDomain.BaseDirectory + @"..\..\Data\Palette\Palette.txt", Encoding.UTF8)){string temp = sr.ReadToEnd();//读取保存的主题二进制流MaterialDesignThemes.Wpf.Palette obj = JObject.Parse(temp).ToObject<MaterialDesignThemes.Wpf.Palette>();//解析json为 主题对象new PaletteHelper().ReplacePalette(obj);//设置保存的主题颜色}}//new PaletteHelper().SetLightDark(true);//设置系统是否为深色}));return _windowLoaded;}}//空构造函数public MainWindowViewModel() { }//构造函数public MainWindowViewModel(ISnackbarMessageQueue snackbarMessageQueue)//Snackbar 消息队列 接口 {InitData();//初始化数据库和PLC连接if (snackbarMessageQueue == null) throw new ArgumentNullException(nameof(snackbarMessageQueue));DemoItems = new[] //视图与视图模型关联{new MainWindowItem("机床信息", new Views.HomePage(){ DataContext = new HomePageViewModel()}),new MainWindowItem("手动控制", new Views.ManualPage(){ DataContext = new ManualPageViewModel()}),new MainWindowItem("自动控制", new Views.AutoPage(){ DataContext = new AutoPageViewModel()}),new MainWindowItem("实时曲线", new Views.CurvePage(){ DataContext = new CurvePageViewModel()}),new MainWindowItem("历史查询", new Views.DataQueryPage()),new MainWindowItem("故障报警", new Views.AlarmSystemPage(){ DataContext = new AlarmSystemPageViewModel()}),new MainWindowItem("系统设置", new Views.SystemSet()),new MainWindowItem("主题设置", new Views.UserPaletteSelector{ DataContext = new PaletteSelectorViewModel() }),};}/// <summary>/// 初始化数据(数据库和PLC数据)/// </summary>private void InitData(){DataBase.DBHelp.FileName = DataBase.DBHelp.fileName;//数据库路径初始化//检查数据库文件是否存在，不存在则创建if (!DataBase.DBHelp.CreteFilesName()){CMessageBox.Show("没有数据库模板", "提示");Environment.Exit(0);}cc://连接PLCif (Lib.S71KConnect.ConnectPLC()){Lib.S71KConnect.StartPLCRead();}else{Lib.S71KConnect.StopPLCRead();goto cc;}VersionNumber = 1.2;//显示版本号ProductNumber = LoginWindowViewModel.productNumber.ProductNumberFull; //显示焊缝编号//启动更新线程if (Lib.S71KConnect.userItem.ConnectionState){uiThread = new Thread(new ThreadStart(UpDataThread));uiThread.IsBackground = true;uiThread.Start();}}/// <summary>/// 线程方法/// </summary>private void UpDataThread(){while(true){ConnectionDelay = Lib.S71KConnect.userItem.ConnectionDelay;//通讯延时ConnectionState = Lib.S71KConnect.userItem.ConnectionState;//通讯状态SystempDateTime = Lib.S71KConnect.userItem.SystempDataTime;//系统时间ProductNumber = LoginWindowViewModel.productNumber.ProductNumberFull;//焊缝编号Thread.Sleep(500);}}}}
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