Lektion 18: lösningsförslag

1. // 1
2. class MyForm : Form
3. {
4. private NumericUpDown temperatureBox;
5. private NumericUpDown volumeBox;
7. public MyForm()
8. {
9. TableLayoutPanel table = new TableLayoutPanel
10. {
11. RowCount = 3,
12. ColumnCount = 2,
13. Dock = DockStyle.Fill
14. };
15. Controls.Add(table);
17. Label temperatureLabel = new Label
18. {
19. Text = "Temperature"
20. };
21. table.Controls.Add(temperatureLabel);
23. temperatureBox = new NumericUpDown();
24. table.Controls.Add(temperatureBox);
26. Label volumeLabel = new Label
27. {
28. Text = "Volume"
29. };
30. table.Controls.Add(volumeLabel);
32. volumeBox = new NumericUpDown();
33. table.Controls.Add(volumeBox);
35. Button button = new Button
36. {
37. Text = "Is This Habitable?",
38. Dock = DockStyle.Fill
39. };
40. table.SetColumnSpan(button, 2);
41. table.Controls.Add(button);
42. button.Click += ClickedEventHandler;
43. }
45. private void ClickedEventHandler(object sender, EventArgs e)
46. {
47. double temperature = (double) temperatureBox.Value;
48. double volume = (double) volumeBox.Value;
49. bool isHabitable = temperature >= 18 && temperature <= 26 && volume <= 45;
50. MessageBox.Show("Is Habitable: " + isHabitable);
51. }
52. }
54. // 2
55. class MyForm : Form
56. {
57. public MyForm()
58. {
59. TableLayoutPanel table = new TableLayoutPanel
60. {
61. RowCount = 5,
62. ColumnCount = 5,
63. Dock = DockStyle.Fill
64. };
65. Controls.Add(table);
67. for (int i = 1; i <= 25; i += 1)
68. {
69. Button button = new Button
70. {
71. Text = "Button " + i
72. };
73. table.Controls.Add(button);
74. button.Click += ClickedEventHandler;
75. }
76. }
78. private void ClickedEventHandler(object sender, EventArgs e)
79. {
80. Button button = (Button) sender;
81. MessageBox.Show("You clicked: " + button.Text);
82. }
83. }