用C＃从称重机到计算机的读取值 [英] Read value from weighing machine to computer in C#

问题描述

我想读取从称重机到系统的值，现在我从称重中得到的值但不正确。最后2个数字不会显示在系统中。



编码：

Hi, I want to read values from weighing machine to system, Now i'm getting the value from Weighing but not correctly. Last 2 numbers are not display in the System.

Coding:

        private void waitbridge2_Load(object sender, EventArgs e)
        {
            timer1.Start();
            timer1.Interval = 1000;  
        }
private void timer1_Tick(object sender, EventArgs e)
        {
            SerialPort sp = new SerialPort();
            sp.PortName = "COM1";
            sp.BaudRate = 2400;
            sp.Parity = Parity.None;
            sp.StopBits = StopBits.One;
            sp.RtsEnable = true;
            sp.DtrEnable = true;
            sp.Open();
            txtweight.Text = sp.ReadLine().ToString();
            Regex digits = new Regex(@"^\D*?((-?(\d+(\.\d+)?))|(-?\.\d+)).*");
            Match mx = digits.Match(txtweight.Text);
            decimal strValue1 = mx.Success ? Convert.ToDecimal(mx.Groups[1].Value) : 0;
            txtweight.Text = strValue1.ToString();
            sp.Close();
        }

我的尝试：



从重量机器到计算机获取全部值

What I have tried:

Getting Full Value from weight machine to Computer

推荐答案

decimal strValue1 = mx.Success ? Convert.ToDecimal(mx.Groups[1].Value) : 0;
txtweight.Text = strValue1.ToString();

为什么要将字符串转换为Decimal，只是将其转换回字符串？



您应该使用调试器逐步执行代码并查看从COM端口返回的内容。

Why are you converting a string to Decimal, just to convert it back to a string?

You should use your debugger to step through the code and see what is returned from the COM port.

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