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【CSharp】 C# 给程序添加许可

作者:大豆男生 / 发布于2012/7/9/ 565

C# 给程序添加许可

<div>实现许可提供程序：</div>
<div></div>
<div>using System;
using System.ComponentModel;
using System.IO;
public class MyLicenseProvider : LicenseProvider
{
 public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions)
 {
 if (context.UsageMode == LicenseUsageMode.Designtime)
 {
 return new MyLicense(this, "OK");
 }
 else
 {
 string licenseFile = AppDomain.CurrentDomain.BaseDirectory + "test.lic";
 if (File.Exists(licenseFile))
 {
 return new MyLicense(this, "OK");
 }
 else
 {
 throw new LicenseException(type);
 }
 }
 }
}
<div></div>
<div>许可证：</div>
<div></div>
<div>using System.ComponentModel;
public class MyLicense : License
{
 private MyLicenseProvider licenseProvider;
 private string licenseKey;</div>
<div> public MyLicense(MyLicenseProvider licenseProvider, string licenseKey)
 {
 this.licenseProvider = licenseProvider;
 this.licenseKey = licenseKey;
 }

 public override string LicenseKey
 {
 get
 {
 return licenseKey;
 }
 }
<div> public override void Dispose()
 {
 this.licenseProvider = null;
 this.licenseKey = null;
 }
}
<div></div>
<div>给组件添加许可:</div>
<div></div>
<div>using System;
using System.ComponentModel;
[LicenseProvider(typeof(MyLicenseProvider))]
public static class Business1
{
 static Business1()
 {
 LicenseManager.Validate(typeof(Business1), null);
 }
<div> public static string TestString = "test ok";
}
<div></div>

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