LicenseManager

LicenseManager

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System.ComponentModel (system.dll)

sealed class

This class offers a set of static utility functions to support the licensing of components .

You can retrieve the CurrentContext and the UsageMode (to determine whether this is a runtime or design-time context). You can lock and unlock the context for a particular object, effectively disabling the ability to get license information for that object, using the LockContext( ) and UnlockContext() methods .

To determine whether a particular object is licensed, you can use the IsLicensed() method. IsValid( ) and Validate() determine whether a valid license for an object can be granted. These methods use the LicenseProvider for the class to obtain a validated license.

Typically, a licensable class is adorned with the LicenseProviderAttribute which indicates the type of LicenseProvider to use. It then makes a call to Validate() in its constructor, to ensure that a suitable license is present for the current context.

 public sealed class  LicenseManager  {  // Public Static Properties  public static LicenseContext  CurrentContext  {set; get; }    public static LicenseUsageMode  UsageMode  {get; }  // Public Static Methods  public static object  CreateWithContext  (Type  type  , LicenseContext  creationContext  );    public static object  CreateWithContext  (Type  type  , LicenseContext  creationContext  , object[]  args  );    public static bool  IsLicensed  (Type  type  );    public static bool  IsValid  (Type  type  );    public static bool  IsValid  (Type  type  , object  instance  , out License  license  );    public static void  LockContext  (object  contextUser  );    public static void  UnlockContext  (object  contextUser  );    public static License  Validate  (Type  type  , object  instance  );    public static void  Validate  (Type  type  ); }