Audit_APP/ViewModel/MachinesViewModel.cs

using Audit.View;
using GalaSoft.MvvmLight;
using Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Threading;

namespace Audit.ViewModel
{
    public class MachinesViewModel : ViewModelBase
    {
        private List<Machines> machiness = new List<Machines>();

        public List<Machines> Machines
        {
            get
            {
                return machiness;
            }
            set
            {
                machiness = value;
                RaisePropertyChanged();
            }
        }

        public MachinesViewModel()
        {
            //machiness = new MachinesProvider().Select();//显示机台

            DispatcherTimer timer = new DispatcherTimer//初始化循环，每0.5秒调用一次Tick_Event
            {
                Interval = TimeSpan.FromSeconds(0.1)
            };
            timer.Tick += Tick_Event;
            timer.Start();
        }
        
        void Tick_Event(object sender, EventArgs e)//Tick_Event周期执行事件
        {           
            if (MachinesView.Button_sql == true)//获取按钮状态
            {
                Machines = new MachinesProvider().Select();//显示机台
                MachinesView.Button_sql = false;
            }

        }
    }
}