C# Infralution Licensing System学习笔记（三）用户自定义控件Licensing应用

1.创建一个UserControl，命名为UserControl1.

2.在UserControl1 class的声明前加入[LicenseProvider(typeof(Infralution.Licensing.EncryptedLicenseProvider))]

3.定义验证相关变量

4.在UserControl1的初始化函数添加验证代码。如下

1. using System;
2. using System.Collections.Generic;
3. using System.ComponentModel;
4. using System.Drawing;
5. using System.Data;
6. using System.Text;
7. using System.Windows.Forms;
8. using Infralution.Licensing;
10. namespace Geoff.Licensing
11. {
12.     [LicenseProvider(typeof(Infralution.Licensing.EncryptedLicenseProvider))]
13.     public partial class UserControl1 : UserControl
14.     {
15.         const string LICENSE_PARAMETERS =
16.             @"<LicenseParameters>
17.                 <RSAKeyValue>
18.                     <Modulus>rzRJ6dZ4ZTJ8/EzFtq2XIaik7QBSc24b8i8KJrPaxXGiCMDFcj8JtEFePa1SYX1W3cQoiwvCAF/MYmkXto74WdApYzILel+bOHSaUXTImrxpPtykNhPD7fF3PEXxrLRrTjUWQyEX5+XSaNPstmbDJw/Zg83mraCfmGeLcsiEypM=</Modulus>
19.                     <Exponent>AQAB</Exponent>
20.                 </RSAKeyValue>
21.                 <DesignSignature>GJYsK2rQE7uj539+QCyJ3Z2GyrNEZQNxruxOQR6P2jo+Ze3Ev5Kgbf3N33RaLf7oEUsZNF4Gv7w5UFgYcdHzCphqznt4vcR++u9tb0sC5m6hf26538GXhkNodyVR9FDcv1AX4+PaM/kY+Z8mrMMmC148lYPpCHypXvgjOmDd9oQ=</DesignSignature>
22.                 <RuntimeSignature>coZIUnOTaRZCIa67HBMM6/xbkQNYS+l4ROeLmzn7SqRamBwP7cbfOEAsxlFV2roKlY6oz1B91/PYcTVPLfWahwjHaiAaLjKAosXK41yZOozu0vRWpv4H9ERiEli0pYX0M8fMBIkvSDT6n9X9T/6U4ujyefv8b4IxbYsB3zsjjx0=</RuntimeSignature>
23.                 <KeyStrength>7</KeyStrength>
24.              </LicenseParameters>";
26.         static LicenseContext lastDesignContext = null;
27.         static bool licenseChecked = false;
29.         public UserControl1()
30.         {
31.             InitializeComponent();
32.             // 设定验证参数
33.             EncryptedLicenseProvider.SetParameters(LICENSE_PARAMETERS);
34.             if (LicenseManager.CurrentContext.UsageMode == LicenseUsageMode.Designtime)
35.             {
36.                 // 控件设计时检查验证
37.                 if (!LicenseManager.IsLicensed(typeof(UserControl1)))
38.                 {
39.                     if (LicenseManager.CurrentContext != lastDesignContext)
40.                     {
41.                         LicenseInstallForm licenseForm = new LicenseInstallForm();
42.                         licenseForm.ShowDialog("UserControl1", "www.geoffhong.com", typeof(UserControl1));
43.                         lastDesignContext = LicenseManager.CurrentContext;
44.                     }
45.                 }
46.             }
47.             else
48.             {
49.                 // 运行时只检查控件有没有授权
50.                 if (!licenseChecked)
51.                 {
52.                     if (!LicenseManager.IsLicensed(typeof(UserControl1)))
53.                     {
54.                         MessageBox.Show("程式使用未授权的UserControl1", "程式未授权");
55.                     }
56.                 }
57.             }
58.             licenseChecked = true; ;
59.         }
60.     }
61. }

5.在引用UserControl1的窗体，新增加入UserControl1控件，会出现一个输入注册码的窗体，与Windows程式验证一致。