1     public partial class HexBoxShow : UserControl
 2     {
 3         public UInt16 _hexLength;
 4         public HexBoxShow()
 5         {
 6             InitializeComponent();
 7             createControls(_hexLength);
 8         }
 9 
10         public void createControls(int num)
11         {
12             int index = 1;
13             Label lbl = null;
14             int X = 4;
15             int Y = 4;
16             TextBox tb = null;
17             int A = 4;
18             int B = 18;
19             for (int i = 0; i < num; i++)
20             {
21                 lbl = new Label();
22                 lbl.Left = X;
23                 lbl.Top = Y;
24                 lbl.Text=  i.ToString();
25                 lbl.Width = 16;
26                 lbl.Height = 12;
27                 X += lbl.Width + 4;
28                 tb = new TextBox();
29                 tb.Text = "0";
30                 tb.Left = A;
31                 tb.Top = B;
32                 tb.Width = 16;
33                 tb.Height = 20;
34                 A += tb.Width + 4;
35                 if (index % 4 == 0)
36                 {
37                     X += 8;
38                     A += 8;
39                 }
40                 if (lbl.Width > this.Width - X)
41                 {
42                     X = 4;
43                     A = 4;
44                     Y = lbl.Height + tb.Height + 4;
45                     B = lbl.Height + tb.Height + 4;
46                 }
47                 this.Controls.Add(lbl);
48                 this.Controls.Add(tb);
49                 index ++;
50             }
51         }
52 
53         #region 属性
54         [Description("设置或者获取显示的位数,一位表示四个二进制位")]
55         [Category("HexShow")]
56         [DefaultValue(2)]
57         public UInt16 HexLength 
58         {
59             get { return _hexLength; }
60             set 
61             {
62                 if (value == null)
63                 {
64                     throw new ArgumentNullException();
65                 }
66                 else
67                 {
68                     if (value >= 0 || value <= 64)
69                         _hexLength = value;
70                     else
71                         throw new ArgumentException("HexLength must be between 0 - 64");
72                 }
73             }
74         }
75         #endregion
76 }