串口接收中文时乱码

[Andrew_wx]

求助大神：串口接收文本时，以十六进制接收时数据正常，接收以中文显示时偶尔会出现乱码，一直搞不定，请高手给点意见。

代码如下

        private void btnComOpen_Click(object sender, EventArgs e)
        {
            if (btnComOpen.Tag.ToString() == "0")
            {
                ComDevice.PortName = cbbComList.SelectedItem.ToString();
                ComDevice.BaudRate = 115200;
                ComDevice.Parity = (Parity)0;
                ComDevice.DataBits = 8;
                ComDevice.StopBits = (StopBits)1;
                try
                {
                    ComDevice.Open();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }
                btnComOpen.Text = "关 闭";
                btnComOpen.Tag = "1";
                picComStatus.Image = Properties.Resources.green;
                ComDevice.DataReceived += new SerialDataReceivedEventHandler(ComDevice_DataReceived);
            }
            else
            {
                try
                {
                    ComDevice.Close();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                btnComOpen.Text = "打 开";
                btnComOpen.Tag = "0";
                picComStatus.Image = Properties.Resources.red;
            }
        }

        #region 接收数据

        private void ComDevice_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            byte[] ReDatas = new byte[ComDevice.BytesToRead];//返回命令包
            ComDevice.Read(ReDatas, 0, ReDatas.Length);//读取数据
            UpdateRecevie(System.Text.Encoding.Default.GetString(ReDatas));
        }

        public delegate void UpdateString(object NewData);
        public void UpdateRecevie(object NewData)
        {
            if (this.InvokeRequired)//等待异步
            {
                UpdateString _myInvoke = new UpdateString(UpdateRecevie);
                this.Invoke(_myInvoke, new object[] { NewData });
            }
            else
            {
                txtComReceive.AppendText(NewData.ToString());
                txtComReceive.SelectionStart = txtComReceive.Text.Length - 1;
                txtComReceive.ScrollToCaret();
            }
        }
        #endregion

[冬夜]

自己解决了 在定义的时候 ComDevice.Encoding = System.Text.Encoding.GetEncoding("GB2312"); 接收：

 private void ComDevice_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
       UpdateRecevie(ComDevice.ReadExisting());
    }

[jhdxhj]

做个记号，也许以后。。。。。。

[BenBenBears]

[晚安苏州]

UpdateRecevie参数用UTF-8试试

[冬夜]

刚才借别人的帐号发的贴，改成UTF8后中文就是乱码了

[wangyongchao880622]

先用十六进制发数，然后你在转成assice码

[jrl5365]