WinCE5 C# serialport控件的接收数据问题！

chenseawind

WinCE5 C# serialport控件的接收数据问题！ [复制链接]

问题说明：
我在WinCE5环境里，使用vs2005(C#)编写串口Demo ，使用serialport控件，现在数据接收不行，查看资料后说需要适用委托，我按照例子更改后仍然不能接收，将接收这一段的代码贴出来，请大家指点！
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO.Ports;
using System.Threading;

namespace DrawList
{
public partial class TestCOM : Form
{
      //[DllImport("kernel32.dll", EntryPoint="CreateFile")]

      delegate void HandleInterfaceUpdateDelegate(string text); //委托
      HandleInterfaceUpdateDelegate interfaceUpdateHandle;

      public TestCOM()
      {
         InitializeComponent();
         Set_SerialPort(0);
      }

      byte[] WriteBuf = new byte[255];
      byte[] ReadBuf = new byte[255];
      int TimeNum = 0;
      private void button1_Click(object sender, EventArgs e)
      {
         try
         {
            textBox1.Text = "";
            String[] Sendstr = textBox2.Text.Split(' ');
            int writelen = Sendstr.Length;
            for (int i = 0; i < Sendstr.Length; i++)
            {
                  WriteBuf = Convert.ToByte(Sendstr, 16);
            }

            Set_SerialPort(0);
            serialPort1.Open();

            serialPort1.Write(WriteBuf, 0,writelen);
            //serialPort1.WriteLine(textBox2.Text);

            serialPort1.Close();
         }
         catch (Exception ex)
         {
            textBox1.Text = ex.Message.ToString();
         }
      }
      void Set_SerialPort(int bl)
      {
         if (bl == 0)
         {
            //serialPort1.PortName = "COM" + textBox3.Text;
            if (comboBox3.Text != "")
            {
                  serialPort1.PortName = comboBox3.Text;
            }
            else
            {
                  serialPort1.PortName = "COM3";
            }
            if (comboBox1.Text == "")
            {
                  serialPort1.BaudRate = 9600;
            }
            else
            {
                  serialPort1.BaudRate = Convert.ToInt32(comboBox1.Text);
            }

            serialPort1.DataBits = Convert.ToInt32(numericUpDown1.Value);

            if (serialPort1.DataBits == 7)
            {
                  serialPort1.StopBits = System.IO.Ports.StopBits.Two;
            }
            if (serialPort1.DataBits == 8)
            {
                  serialPort1.StopBits = System.IO.Ports.StopBits.One;
            }
            if (serialPort1.DataBits == 9)
            {
                  serialPort1.StopBits = System.IO.Ports.StopBits.None;
            }
            if (comboBox2.Text == "Odd")
            {
                  serialPort1.Parity = System.IO.Ports.Parity.Odd;
            }
            else if (comboBox2.Text == "Even")
            {
                  serialPort1.Parity = System.IO.Ports.Parity.Even;
            }
            else if (comboBox2.Text == "None")
            {
                  serialPort1.Parity = System.IO.Ports.Parity.None;
            }
            else if (comboBox2.Text == "")
            {
                  serialPort1.Parity = System.IO.Ports.Parity.None;
            }

            interfaceUpdateHandle = new HandleInterfaceUpdateDelegate(AddText); //实例化委托对象
            serialPort1.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(serialPort1_DataReceived);

            serialPort1.ReceivedBytesThreshold = 1;

            serialPort1.WriteBufferSize = 1000;
            serialPort1.WriteTimeout = 1000;
            serialPort1.ReadBufferSize = 1000;
            serialPort1.ReadTimeout = 1000;
         }
         else if (bl == 1)
         {
            serialPort1.WriteBufferSize = 1000;
            serialPort1.WriteTimeout = 1000;
            serialPort1.ReadBufferSize = 1000;
            serialPort1.ReadTimeout = 1000;

            serialPort1.PortName = "COM3";
            serialPort1.BaudRate = 9600;
            serialPort1.DataBits = 8;
            serialPort1.StopBits = StopBits.One;
            serialPort1.Parity = Parity.None;
         }
      }
#region Get COM number
      private void TestCOM_Load(object sender, EventArgs e)
      {
         timer1.Interval = 1000;
         string[] ports = SerialPort.GetPortNames();
         for (int i=0; i < ports.Length; i++)
         {
            comboBox3.Items.Add(ports.ToString());
         }
      }
#endregion

      private void button2_Click(object sender, EventArgs e)//Close this Form
      {
         timer1.Enabled = false;
         serialPort1.Close();
         Close();
      }

      private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
      {

         //StringBuilder datatext;
         //datatext = new StringBuilder();
         String datatext = "";
         if (!serialPort1.IsOpen)
         {
            serialPort1.Open();
         }
         if (serialPort1.ReceivedBytesThreshold > 0)
         {
            byte[] tmpbuf = new byte[serialPort1.BytesToRead];

            serialPort1.Read(tmpbuf, 0, serialPort1.BytesToRead);
            Thread.Sleep(50);

            for (int i = 0; i < serialPort1.BytesToRead; i++)
            {
                  //datatext.Append(tmpbuf.ToString() + " " + i.ToString() + " ");
                  datatext = datatext + tmpbuf.ToString() + " " + i.ToString() + " ";

            }
            this.textBox1.Invoke(interfaceUpdateHandle, datatext.ToString());

            //AddText(datatext);
         }

      }
      private void AddText(string text)
      {
         textBox1.Text += text.ToString();
      }
}
}

liu666

没有人回答？看来悬了

chylong

用这个
if (textBox1..InvokeRequired)
            {
               this.lblMsg.Invoke(new EventHandler(this.AddText), new object[] { datatext.ToString(), EventArgs.Empty });
            }

private void AddText(object sender,eventargs e)
      {
         textBox1.Text += sender.ToString();
      }

good luck