C#之windows桌面軟件第十課：電腦ADC值顯示（上位機）?（單通道顯示）

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO.Ports;//using System.IO.Ports; namespace Adc_Display {public partial class Form1 : Form{public Form1()//構造函數{InitializeComponent();serialPort1.DataReceived += new SerialDataReceivedEventHandler(PortDataReceivedEvent); //添加串口數據接受事件//關閉多線程間操作檢查，這樣就可以在串口接收數據處理線程中可以操作定義的線程。否則會出錯。System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false; }//通過進度條把值顯示出來（串口數據接收）private void PortDataReceivedEvent(object sender, SerialDataReceivedEventArgs args) {byte Data = (byte)serialPort1.ReadByte(); //把接受到的數據賦給變量DataprogressBar1.Value = Data; //把Data值給進度條}/*下面語句用來調整窗口的大小和是否可見groupBox2.Visible = false; //第二個框不可見this.Size = new Size(620, 117); //縮小窗口groupBox2.Visible = true; //第二個框框可見this.Size = new Size(620, 172); //放大窗口*///打開串口按鈕private void button1_Click(object sender, EventArgs e){if (serialPort1.IsOpen) //判斷{groupBox2.Visible = false; //第二個框不可見this.Size = new Size(620, 117); //縮小窗口serialPort1.Close(); //此處可不加try，catchbutton1.Text = "打開串口";}else{try{serialPort1.PortName = comboBox1.Text; //串口號serialPort1.Open(); //打開groupBox2.Visible = true; //第二個框框可見this.Size = new Size(620, 172); //放大窗口button1.Text = "關閉串口"; //按鍵標題}catch{MessageBox.Show("串口打開錯誤", "錯誤");}}}} }

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