.NET Framework Class Library
PreviousTrackingServiceAttribute Class

Note: This API is now obsolete.

Indicates the type of the TrackingService that was used prior to the current version.

Inheritance Hierarchy
SystemObject
   SystemAttribute
    System.Workflow.Runtime.TrackingPreviousTrackingServiceAttribute

Namespace:   System.Workflow.Runtime.Tracking
Assembly:  System.Workflow.Runtime (in System.Workflow.Runtime.dll)
Syntax
<[%$TOPIC/ee361850_en-us_VS_110_3_0_0_0_0%]([%$TOPIC/ee361850_en-us_VS_110_3_0_0_0_1%].Class, AllowMultiple := True)> _
<[%$TOPIC/ee361850_en-us_VS_110_3_0_0_0_2%]("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")> _
Public NotInheritable Class PreviousTrackingServiceAttribute _
	Inherits [%$TOPIC/ee361850_en-us_VS_110_3_0_0_0_3%]
[[%$TOPIC/ee361850_en-us_VS_110_3_0_1_0_0%]([%$TOPIC/ee361850_en-us_VS_110_3_0_1_0_1%].Class, AllowMultiple = true)]
[[%$TOPIC/ee361850_en-us_VS_110_3_0_1_0_2%]("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public sealed class PreviousTrackingServiceAttribute : [%$TOPIC/ee361850_en-us_VS_110_3_0_1_0_3%]
[[%$TOPIC/ee361850_en-us_VS_110_3_0_2_0_0%]([%$TOPIC/ee361850_en-us_VS_110_3_0_2_0_1%]::Class, AllowMultiple = true)]
[[%$TOPIC/ee361850_en-us_VS_110_3_0_2_0_2%](L"The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public ref class PreviousTrackingServiceAttribute sealed : public [%$TOPIC/ee361850_en-us_VS_110_3_0_2_0_3%]
[<[%$TOPIC/ee361850_en-us_VS_110_3_0_3_0_0%]>]
[<[%$TOPIC/ee361850_en-us_VS_110_3_0_3_0_1%]([%$TOPIC/ee361850_en-us_VS_110_3_0_3_0_2%].Class, AllowMultiple = true)>]
[<[%$TOPIC/ee361850_en-us_VS_110_3_0_3_0_3%]("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")>]
type PreviousTrackingServiceAttribute =  
    class 
        inherit [%$TOPIC/ee361850_en-us_VS_110_3_0_3_0_4%] 
    end
public final class PreviousTrackingServiceAttribute extends [%$TOPIC/ee361850_en-us_VS_110_3_0_4_0_0%]

The PreviousTrackingServiceAttribute type exposes the following members.

Constructors
  NameDescription
Public method PreviousTrackingServiceAttributeCreates a new instance of the PreviousTrackingServiceAttribute class.
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Properties
  NameDescription
Public property AssemblyQualifiedNameGets the fully qualified assembly name of the previous version tracking service that this version replaces.
Public property TypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
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Methods
  NameDescription
Public method EqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Public method GetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public method GetTypeGets the Type of the current instance. (Inherited from Object.)
Public method IsDefaultAttributeWhen overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.)
Public method MatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Public method ToStringReturns a string that represents the current object. (Inherited from Object.)
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Explicit Interface Implementations
  NameDescription
Explicit interface implemetation Private method _AttributeGetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeGetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeGetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetation Private method _AttributeInvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
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Remarks
NoteNote

This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5.

When an assembly containing a new version of a TrackingService implementation is deployed, this attribute is applied to the new version of the tracking service class to identify the assembly of the previous version. This allows the runtime to utilize the newer tracking service for workflows that were using persisted while using the previous version of the tracking service, but resumed after the new version was implemented.

Version Information

.NET Framework

Supported in: 4
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.6
Obsolete (compiler warning) in 4.5
Obsolete (compiler warning) in 4.5.1
Obsolete (compiler warning) in 4.5.2
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.