WinForm 中TextBox，CheckBox，RadioButton等控件的综合应用

 1  public partial class Form1 : Form
 2     {
 3         public Form1()
 4         {
 5             InitializeComponent();
 6             this.button1.Enabled = false;
 7         }
 8         public void ValidatingOk()
 9         {
10             this.button1.Enabled = (bool)this.txtName.Tag && (bool)this.txtAddress.Tag && (bool)this.txtAge.Tag;
11         }
12         private void EmptyValidating(object sender, CancelEventArgs e)
13         {
14             TextBox tb = (TextBox)sender;
15             if (tb.Text.Length == 0)
16             {
17                 tb.Tag = false;
18                 tb.BackColor = Color.Red;
19             }
20             else
21             {
22                 tb.Tag = true;
23                 tb.BackColor = SystemColors.Window;
24             }
25             ValidatingOk();
26         }
27 
28         private void txtAge_KeyPress(object sender, KeyPressEventArgs e)
29         {
30             if ((e.KeyChar < 48 || e.KeyChar > 57) && e.KeyChar != 8)
31             {
32                 e.Handled = true;
33             }
34           }
35 
36         private void txtAge_Validating(object sender, CancelEventArgs e)
37         {
38             TextBox tb = (TextBox)sender;
39             if (tb.Text.Length == 0)
40             {
41                 tb.Tag = false;
42                 tb.BackColor = Color.Red;
43             }
44             else
45             {
46                 tb.Tag = true;
47                 tb.BackColor = SystemColors.Window;
48             }
49             ValidatingOk();
50         }
51 
52         private void txtAddress_TextChanged(object sender, EventArgs e)
53         {
54             TextBox tb = (TextBox)sender;
55             if (tb.Text.Length == 0)
56             {
57                 tb.Tag = false;
58                 tb.BackColor = Color.Red;
59             }
60             else
61             {
62                 tb.Tag = true;
63                 tb.BackColor = SystemColors.Window;
64             }
65             ValidatingOk();
66         }
67 
68         private void button1_Click(object sender, EventArgs e)
69         {
70             this.txtOutput.Text = "";
71             this.txtOutput.Text += "姓名:" + this.txtName.Text + "\r\n" + "地址:" + this.txtAddress.Text + "\r\n" + "职位:" + (string)(this.chProgrammer.Checked ? "程序员" : "不是程序员") + "\r\n" + "年龄:" + this.txtAge.Text + "\r\n" + "性别:" + (string)(this.rbFale.Checked ? "男" : "女");
72 
73         }
74 
75         private void button2_Click(object sender, EventArgs e)
76         {
77             this.txtOutput.Text = "";
78             this.txtOutput.Text += "姓名:" + "你的姓名" + "\r\n" + "地址:" + "你的地址" + "\r\n" + "职位:" + "你的职位" + "\r\n" + "年龄:" + "你的年龄" + "\r\n" + "性别:" + "你的性别" + "\r\n";
79         }
80     }