延续上一个串口类，没有做定时发送，界面也不好看，虽然是仿的，估计我自己设计更难看，后面看看是不是可以做进数据库。可以打开串口，传输数据这块还没有做测试
3.串口助手UI设计和任务编写
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usingSystem;
usingSystem.Collections.Generic;
usingSystem.ComponentModel;
usingSystem.Data;
usingSystem.Drawing;
usingSystem.Linq;
usingSystem.Text;
usingSystem.Windows.Forms;
usingSystem.IO;
usingSystem.IO.Ports;
namespaceSerialPortHelper
{
publicpartialclassFrmHelper: Form
{
//创建串口操作助手对象
privateSerialPortHelper serialPortHelper = newSerialPortHelper();
#region系统初始化
publicFrmHelper()
{
InitializeComponent();
//串口基本参数初始化
this.cboBaudRrate.SelectedIndex = 5;//默认波特率为9600
this.cboCheckBit.SelectedIndex = 0;//校验位默认NONE
this.cboDataBit.SelectedIndex = 1;//数据位默认8
this.cboStopBit.SelectedIndex = 0;//停止位默认1
//检查当前计算机串口
if(this.serialPortHelper.PortNames.Length==0)
{
MessageBox.Show("当前计算机上没有找到可用的端口！", "警告信息");
this.btnOperatePort.Enabled = false;//禁用打开端口按钮
}
else//如果检查到串口存在
{
//将串口添加到下拉窗,默认第一个串口
this.cboCOMList.Items.AddRange(this.serialPortHelper.PortNames);
this.cboCOMList.SelectedIndex = 0;
}
//串口对象委托和串口接收数据事件关联
this.serialPortHelper.SerialPortObject.DataReceived +=
newSerialDataReceivedEventHandler(this.SerialPort_DataReceived);
}
#endregion
#region串口参数设置
//校验位设置
privatevoidcboCheckBit_SelectedIndexChanged(objectsender, EventArgs e)
{
if(cboCheckBit.Text == "EVEN")
serialPortHelper.SerialPortObject.Parity = System.IO.Ports.Parity.Even;//奇校验
elseif(cboCheckBit.Text == "NONE")
serialPortHelper.SerialPortObject.Parity = System.IO.Ports.Parity.None;//无校验
elseif(cboCheckBit.Text == "ODD")
serialPortHelper.SerialPortObject.Parity = System.IO.Ports.Parity.Odd;//偶校验
}
//波特率的设置
privatevoidcboBaudRrate_SelectedIndexChanged(objectsender, EventArgs e)
{
this.serialPortHelper.SerialPortObject.BaudRate = Convert.ToInt32(this.cboBaudRrate.Text);
}
//数据位设计
privatevoidcboDataBit_SelectedIndexChanged(objectsender, EventArgs e)
{
this.serialPortHelper.SerialPortObject.DataBits = Convert.ToInt32(this.cboDataBit.Text);
}
privatevoidcboStopBit_SelectedIndexChanged(objectsender, EventArgs e)
{
if(cboStopBit.Text == "1")
serialPortHelper.SerialPortObject.StopBits = System.IO.Ports.StopBits.One;
elseif(cboStopBit.Text == "2")
serialPortHelper.SerialPortObject.StopBits = System.IO.Ports.StopBits.Two;
}
#endregion
#region开关串口
privatevoidbtnOperatePort_Click(objectsender, EventArgs e)
{
try
{
if(this.btnOperatePort.Text.Trim()=="打开串口")
{
this.serialPortHelper.OpenSerialPort(this.cboCOMList.Text.Trim(), 1);
this.lblSerialPortStatus.Text = "串口已打开";
this.lblStatusShow.BackColor = Color.Green;
this.btnOperatePort.Text = "关闭串口";
}
else
{
this.serialPortHelper.OpenSerialPort(this.cboCOMList.Text.Trim(), 0);
this.lblSerialPortStatus.Text = "串口未打开";
this.lblStatusShow.BackColor = Color.Red;
this.btnOperatePort.Text = "打开串口";
}
}
catch(Exception ex)
{
MessageBox.Show("端口操作异常:"+ex.Message);
}
}
#endregion
#region发送数据
//这个方法独立出来，是为了后面扩展自动定时发送数据的时候调用
privatevoidsendData(stringdata)
{
try
{
if(this.ckb16Send.Checked)//发送十六进制数据
{
this.serialPortHelper.SendData(data, SendFormat.Hex);
}
else//发送字符串
{
this.serialPortHelper.SendData(data, SendFormat.String);
}
}
catch(Exception ex)
{
MessageBox.Show("发送数据出现错误："+ ex.Message, "错误提示！");
}
}
privatevoidbtnSend_Click(objectsender, EventArgs e)
{
if(this.txtSender.Text.Trim().Length==0)
{
MessageBox.Show("发送信息不能为空", "提示信息");
}
else
{
//开始发送
sendData(this.txtSender.Text.Trim());
}
}
#endregion
#region串口接收数据的事件
///
///串口接收数据
///
///sender">
///e">
privatevoidSerialPort_DataReceived(objectsender, SerialDataReceivedEventArgs e)
{
try
{
ReceiveData(this.serialPortHelper.ReceiveData());
}
catch(Exception ex)
{
MessageBox.Show("接收数据出现错误："+ ex.Message);
}
}
///
///接收数据的具体实现过程
///
///byteData">
privatevoidReceiveData(byte[] byteData)
{
stringdata = string.Empty;
if(this.ckb16Receive.Checked)//十六机制接收
{
data = this.serialPortHelper.AlgorithmHelperObject.BytesTo16(byteData, Enum16Hex.Blank);
//在这里编写具体的数据处理过程。。。可以保存到数据库，或其他文件...
}
else
{
data = this.serialPortHelper.AlgorithmHelperObject.BytesToString(byteData, Enum16Hex.None);
}
//显示到当前文本框中
//因为接收数据的事件是一个独立线程，所有必须通过跨线程访问可视化控件的方法来完成展示
//Invoke（）方法的第一个参数必须是返回值为void的委托，第二个参数是给委托对应方法传递的参数
this.txtReceiver.Invoke(newAction<string>(s => { this.txtReceiver.Text += ""+ s; }), data);//系统委托，连续输出，每次数据间加一个空格
}
#endregion
//请空数据按钮
privatevoidbtnClear_Click(objectsender, EventArgs e)
{
this.txtReceiver.Clear();
this.txtSender.Clear();
}
}
}
