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SatelliteContractVersionAttribute Class

Instructs the ResourceManager to ask for a particular version of a satellite assembly to simplify updates of the main assembly of an application.

System.Object
  System.Attribute
    System.Resources.SatelliteContractVersionAttribute

Namespace:  System.Resources
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets.Assembly, AllowMultiple = false)]
public sealed class SatelliteContractVersionAttribute : Attribute

The SatelliteContractVersionAttribute type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySatelliteContractVersionAttributeInitializes a new instance of the SatelliteContractVersionAttribute class.
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  NameDescription
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
Public propertySupported by the XNA FrameworkSupported by Portable Class LibraryVersionGets the version of the satellite assemblies with the required resources.
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  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibraryEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodSupported by the XNA FrameworkSupported by Portable Class LibraryFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibraryGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibraryGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public methodSupported by the XNA FrameworkMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodSupported by the XNA FrameworkSupported by Portable Class LibraryMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibraryToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Explicit interface implemetationPrivate method_Attribute.GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
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The SatelliteContractVersionAttribute establishes a contract between a main assembly and all its satellites. When the ResourceManager looks up resources, it explicitly loads the satellite version specified by this attribute on the main assembly, allowing a layer of indirection to facilitate versioning scenarios.

When the main assembly is updated, its assembly version number is incremented. However, you might not want to ship new copies of your satellite assemblies if the existing ones are sufficient and compatible with the newer version of your product. In this case, increment the main assembly's version number but leave the satellite contract version number the same. The ResourceManager will use your existing satellite assemblies.

If you need to revise a satellite assembly but not the main assembly, you must increment the version number on your satellite. In this case, ship a policy assembly along with your satellite assembly stating that your new satellite assembly has backward compatibility with your old satellite assembly. The ResourceManager will still use the old contract number written into your main assembly; however, the loader will bind to the satellite assembly version as specified by the policy assembly.

A publisher policy assembly is the way in which a vendor of a shared component makes a compatibility statement about a particular version of a released assembly. A publisher policy assembly is a strongly named assembly with a name in the format policy.<major>.<minor>.<ComponentAssemblyName>, and is registered in the Global Assembly Cache (GAC). The publisher policy is generated from an XML configuration file (see <bindingRedirect> Element) by using the Al.exe (Assembly Linker) tool. The assembly linker is used with the /link option to link the XML configuration file to a manifest assembly, that is then stored in the GAC. The publisher policy assemblies can be used when a vendor ships a maintenance release (Service Pack) that contains bug fixes.

NoteNote

Apply this attribute to your main assembly, passing it the version number of the satellite assembly that will work with this version of the main assembly.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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