BPASmartClient/BPASmartClient.ViewModel/LogViewModel.cs

using BPASmartClient.Message;
using Microsoft.Toolkit.Mvvm.ComponentModel;
using Microsoft.Toolkit.Mvvm.Input;
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Threading;

namespace BPASmartClient.ViewModel
{
    /// <summary>
    /// 日志界面
    /// </summary>
    public class LogViewModel :ObservableObject
    {
        public DispatcherTimer dispatcherTimer;

        private ObservableCollection<LogModel> _LogModels;
        public ObservableCollection<LogModel> LogDataGrid
        {
            get
            {
                return _LogModels;
            }
            set
            {
                if (_LogModels == value)
                    return;
                _LogModels = value;
                OnPropertyChanged("LogDataGrid");
            }
        }

        public LogViewModel()
        {
            LogDataGrid = new ObservableCollection<LogModel>();
            MessageLog.GetInstance.InfoNotify = new Action<string>((s) =>
            {
                System.Windows.Application.Current.Dispatcher.Invoke((Action)(() =>
                {
                    LogDataGrid.Insert(0,new LogModel { message = s,type = "Info" });
                }));
            });
            MessageLog.GetInstance.ExInfoNotify = new Action<string>((s) =>
            {
                System.Windows.Application.Current.Dispatcher.Invoke((Action)(() =>
                {
                    LogDataGrid.Insert(0,new LogModel { message = s,type = "Error" });
                }));
            });
            ExcelCommand = new RelayCommand(() =>
            {
                ExcellOrder();
            });

            //dispatcherTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };//1秒一流转
            //dispatcherTimer.Tick += delegate
            //{
            //    if (TimedClear)
            //    {
                    
            //    }
            //};
            //dispatcherTimer.Start();
        }

        /// <summary>
        /// 导出数据
        /// </summary>
        public void ExcellOrder()
        {
            if (LogDataGrid.Count > 0)
            {
                string text = "时间    类型    日志内容\n";
                LogDataGrid?.ToList().ForEach(temp =>
                {
                    text = text + temp.time + "    " + temp.type + "    " + temp.message+ "\n";
                });
                SaveFileDialog openfile = new SaveFileDialog();
                openfile.Filter = "Txt文件(*.txt)|*.txt";
                if (openfile.ShowDialog() == false)
                {
                    return;
                }
                string path = openfile.FileName;
                if (!System.IO.File.Exists(path))
                {
                    //没有则创建这个文件
                    FileStream fs1 = new FileStream(path,FileMode.Create,FileAccess.Write);//创建写入文件   
                    StreamWriter sw = new StreamWriter(fs1);
                    sw.WriteLine(text);//开始写入值
                    sw.Close();
                    fs1.Close();
                }
                else
                {
                    FileStream fs = new FileStream(path,FileMode.Open,FileAccess.Write);
                    StreamWriter sr = new StreamWriter(fs);
                    sr.WriteLine(text);//开始写入值
                    sr.Close();
                    fs.Close();
                }
                string msg = string.Format("记录导出完成,共导出记录{0}条,是否打开！",LogDataGrid.Count);
                if (System.Windows.MessageBox.Show(msg,"提示",MessageBoxButton.OKCancel) == MessageBoxResult.OK)
                {
                    OpenFile(openfile.FileName);
                }
            }
            else
                System.Windows.MessageBox.Show("无数据!");

        }
        /// <summary>
        /// 打开指定路径下文件，比如：Word、Excel、Dll、图片等都可以（前提是你已经安装打开程序的对应软件）
        /// </summary>
        /// <param name="NewFileName">eg：D:\Test\模版8.doc</param>
        /// <param name="NewFileName">eg：D:\Test\模版8.doc</param>
        private void OpenFile(string NewFileName)
        {
            Process process = new Process();
            ProcessStartInfo processStartInfo = new ProcessStartInfo(NewFileName);
            process.StartInfo = processStartInfo;
            #region 下面这段被注释掉代码（可以用来全屏打开代码）
            //建立新的系统进程
            ////System.Diagnostics.Process process = new System.Diagnostics.Process();
            //设置文件名，此处为图片的真实路径 + 文件名（需要有后缀）    
            ////process.StartInfo.FileName = NewFileName;
            //此为关键部分。设置进程运行参数，此时为最大化窗口显示图片。    
            ////process.StartInfo.Arguments = "rundll32.exe C://WINDOWS//system32//shimgvw.dll,ImageView_Fullscreen";
            // 此项为是否使用Shell执行程序，因系统默认为true，此项也可不设，但若设置必须为true
            process.StartInfo.UseShellExecute = true;
            #endregion
            try
            {
                process.Start();
                try
                {
                    // process.WaitForExit();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                try
                {
                    if (process != null)
                    {
                        process.Close();
                        process = null;
                    }
                }
                catch { }
            }
        }

        private bool _RealTimeModel = true;
        public bool RealTimeModel
        {
            get
            {
                return _RealTimeModel;
            }
            set
            {
                if (_RealTimeModel == value)
                    return;
                _RealTimeModel = value;
                OnPropertyChanged("RealTimeModel");
            }
        }

        private bool _TimedClear = true;
        public bool TimedClear
        {
            get
            {
                return _TimedClear;
            }
            set
            {
                if (_TimedClear == value)
                    return;
                _TimedClear = value;
                OnPropertyChanged("TimedClear");
            }
        }

        public RelayCommand ExcelCommand { get; set; }

    }

    public class LogModel :ObservableObject
    {
        public string time { get; set; }

        private string _type;
        public string type
        {
            get
            {
                return _type;
            }
            set
            {
                if (_type == value)
                    return;
                _type = value;
                if(_type== "Error") foreground = new SolidColorBrush((System.Windows.Media.Color)System.Windows.Media.ColorConverter.ConvertFromString("#ed0032"));

                OnPropertyChanged("type");
            }
        }
        public string message { get; set; }

        private Brush _foreground;
        public Brush foreground
        {
            get
            {
                return _foreground;
            }
            set
            {
                if (_foreground == value)
                    return;
                _foreground = value;
                OnPropertyChanged("foreground");
            }
        }
        public LogModel()
        {
            foreground=new SolidColorBrush((System.Windows.Media.Color)System.Windows.Media.ColorConverter.ConvertFromString("#21bb2e"));
            time =DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
        }
    }
}