01.using System;
02. using System.Collections.Generic;
03. using System.ComponentModel;
04. using System.Data;
05. using System.Drawing;
06. using System.Text;
07. using System.Windows.Forms;
08.
09. namespace SimpleSerial
10. {
11. public partial class Form1 : Form
12. {
13.
14.
15. string RxString;
16.
17. public Form1()
18. {
19. InitializeComponent();
20. }
21.
22. private void buttonStart_Click(object sender, EventArgs e)
23. {
24. serialPort1.PortName = "COM1";
25. serialPort1.BaudRate = 9600;
26.
27. serialPort1.Open();
28. if (serialPort1.IsOpen)
29. {
30. buttonStart.Enabled = false;
31. buttonStop.Enabled = true;
32. textBox1.ReadOnly = false;
33. }
34. }
35.
36. private void buttonStop_Click(object sender, EventArgs e)
37. {
38. if (serialPort1.IsOpen)
39. {
40. serialPort1.Close();
41. buttonStart.Enabled = true;
42. buttonStop.Enabled = false;
43. textBox1.ReadOnly = true;
44. }
45.
46. }
47.
48. private void Form1_FormClosing(object sender, FormClosingEventArgs e)
49. {
50. if (serialPort1.IsOpen) serialPort1.Close();
51. }
52.
53. private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
54. {
55.
56.
57. if(!serialPort1.IsOpen) return;
58.
59.
60. char[] buff = new char[1];
61.
62.
63.
64. buff[0] = e.KeyChar;
65.
66.
67. serialPort1.Write(buff, 0, 1);
68.
69.
70.
71. e.Handled = true;
72. }
73.
74. private void DisplayText(object sender, EventArgs e)
75. {
76. textBox1.AppendText(RxString);
77. }
78.
79. private void serialPort1_DataReceived
80. (object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
81. {
82. RxString = serialPort1.ReadExisting();
83. this.Invoke(new EventHandler(DisplayText));
84. }
85. }
86. }
