TrainCamp_zhangyongpan_Modbus/ModbusDemo/VIewModel/CoilUCViewModel.cs

using ModbusDemo.Device;
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace ModbusDemo.VIewModel
{
    /// <summary>
    /// 这是CoilUC的VM用来支持数据绑定
    /// </summary>
    public class CoilUCViewModel : BindableBase
    {
        //获取读线圈的类
        private IModbusRTU _modbusRTU;
        //定义读线圈的命令
        public DelegateCommand ReadCoilCmm { get; set; }
        //获取当前使用的串口
        private SerialPort _serialPort;
        //显示当前链接串口的信息
        public string SerialPortInfo
        {
            get
            {
                return "当前链接的状态：" + "串口号：" + _serialPort.PortName + "，波特率：" + _serialPort.BaudRate
                    + "，数据位：" + _serialPort.DataBits + "，校验位：" + _serialPort.Parity + "，停止位：" + _serialPort.StopBits;
            }

        }


        //读取的从站id
        private string _slaveAddress;

        public string SlaveAddress
        {
            get { return _slaveAddress; }
            set
            {
                _slaveAddress = value;
                RaisePropertyChanged();
            }
        }

        private string _startAddress;

        //读取的起始地址
        public string StartAddress
        {
            get { return _startAddress; }
            set
            {
                _startAddress = value;
                RaisePropertyChanged();
            }
        }

        private string _numberOfPoints;

        //读取的位数
        public string NumberOfPoints
        {
            get { return _numberOfPoints; }
            set
            {
                _numberOfPoints = value;
                RaisePropertyChanged();
            }
        }

        private string _readResult;

        //读取的结果
        public string ReadResult
        {
            get { return _readResult; }
            set
            {
                _readResult = value;
                RaisePropertyChanged();
            }
        }



        public CoilUCViewModel()
        {

        }

        public CoilUCViewModel(SerialPort serialPort, ModbusRTU modbusRTU)
        {
            _serialPort = serialPort;
            ReadCoilCmm = new DelegateCommand(ReadCoil);
            _modbusRTU = modbusRTU;
        }

        private void ReadCoil()
        {


            try
            {
                bool[] result = _modbusRTU.ReadCoil(byte.Parse(SlaveAddress),
                                                ushort.Parse(StartAddress),
                                                ushort.Parse(NumberOfPoints));

                if(result != null)
                {
                    string temp = "";
                    foreach(var item in result)
                    {
                        temp += item;
                        temp += " ";
                    }
                    ReadResult = temp;
                }
                
                
            }
            catch (Exception)
            {

                MessageBox.Show("参数配置错误");
            }

            


        }
    }
}