asp.net(C#)如何获取地磅称取的重量？急！web的

GoldKi 2009-11-04 12:20:31

如题，在线等

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GoldKi 2010-02-21

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完成勒，用c/s做的，结贴了

ChinaHuNannet 2010-02-21

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我笔记本没有串口，弄了个串口转usb的东西，结果每次从地磅得到的数据都是???这些东西。郁闷

ChinaHuNannet 2010-02-21

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我在弄这个，现在还没有弄出来，纠结。

GoldKi 2009-11-04

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貌似自带一个mscomm的东西的，不知道怎么添加进去

caobob 2009-11-04

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写ActiveX控件才能在客户端调用

GoldKi 2009-11-04

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在web里怎么搞啊？

GoldKi 2009-11-04

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在winform里用的serialPort加backgroundWorker控件，在web里怎么获取啊！在winform里就写几行就实现了

      #region 打开端口

        private void OpenCOM()

        {

            try

            {

                this.sbWeightInfo = new StringBuilder();

                //this.rtDatas.Text = "";

                this.txtWT.Text = "0";

                this.LDataSteam.Text = "100";

                //this.serialPort1.ReadTimeout = 1000; 



                this.serialPort1.Open();

                _continue = true;

                this.backgroundWorker1.RunWorkerAsync();



            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

        }

        #endregion



        #region backgroundWorker EVENT

        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)

        {

            BackgroundWorker worker = ((BackgroundWorker)sender);

            while (_continue)

            {

                try

                {

                    string message = this.serialPort1.ReadLine();

                    /*

                    System.Threading.Thread.Sleep(300);

                    string message = (++count).ToString();

                    message = message.PadLeft(13, ' ');

                    if (count > 1000)

                        count = 0;

                     * */

                    //string weight = message.Substring(6, 7).Trim();



                    string weight = message;





                    worker.ReportProgress(0, weight);

                }

                catch (TimeoutException te)

                {

                    _continue = false;

                    //MessageBox.Show(te.Message);

                }

                catch (Exception ex)

                {

                    _continue = false;

                    //MessageBox.Show(ex.Message);

                }

            }

        }



        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)

        {

            BackgroundWorker worker = sender as BackgroundWorker;

            Object userstate = e.UserState;

            string newWeight = (string)userstate;

            this.LDataSteam.Text = newWeight;

           // this.rtDatas.Text = newWeight + this.rtDatas.Text;

        }