OperationBase Class

Artigo
01/27/2012

[WCF RIA Services Version 1 Service Pack 2 is compatible with either .NET framework 4 or .NET Framework 4.5, and with either Silverlight 4 or Silverlight 5.]

Represents an asynchronous operation.

Inheritance Hierarchy

System.Object
  System.ServiceModel.DomainServices.Client.OperationBase
    System.ServiceModel.DomainServices.Client.ApplicationServices.AuthenticationOperation
    System.ServiceModel.DomainServices.Client.InvokeOperation
    System.ServiceModel.DomainServices.Client.LoadOperation
    System.ServiceModel.DomainServices.Client.SubmitOperation

Namespace: System.ServiceModel.DomainServices.Client
Assembly: System.ServiceModel.DomainServices.Client (in System.ServiceModel.DomainServices.Client.dll)

Syntax

'Declaration
Public MustInherit Class OperationBase _
    Implements INotifyPropertyChanged

'Usage
Dim instance As OperationBase

public abstract class OperationBase : INotifyPropertyChanged

public ref class OperationBase abstract : INotifyPropertyChanged

[<AbstractClassAttribute>]
type OperationBase =  
    class
        interface INotifyPropertyChanged
    end

public abstract class OperationBase implements INotifyPropertyChanged

The OperationBase type exposes the following members.

Constructors

	Name	Description
	OperationBase	Initializes a new instance of the OperationBase class.

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Properties

	Name	Description
	CanCancel	Gets a value that indicates whether this OperationBase is currently in a state that enables it to be canceled.
	Error	Gets the operation error if the operation failed.
	HasError	Gets a value that indicates whether the operation failed.
	IsCanceled	Gets a value that indicates whether this operation has been canceled.
	IsComplete	Gets a value that indicates whether this operation has completed.
	IsErrorHandled	Gets or sets a value that indicates whether the operation error has been handled.
	Result	Gets the result of the asynchronous operation.
	SupportsCancellation	Gets a value that indicates whether this operation supports cancellation.
	UserState	Gets the optional user state for this operation.

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Methods

	Name	Description
	Cancel	Cancels the operation.
	CancelCore	When overridden in a derived class, provides the logic to cancel the operation.
	Complete(Exception)	Completes a failed operation with the specified error.
	Complete(Object)	Completes a successful operation with the specified result.
	Equals	(Inherited from Object.)
	Finalize	(Inherited from Object.)
	GetHashCode	(Inherited from Object.)
	GetType	(Inherited from Object.)
	InvokeCompleteAction	Invokes the completion callback.
	MarkErrorAsHandled	Specifies that an error encountered in an operation is handled.
	MemberwiseClone	(Inherited from Object.)
	OnPropertyChanged	Called when the value of a property changes.
	RaisePropertyChanged	Raises the System#ComponentModel#INotifyPropertyChanged#PropertyChanged() event.
	ToString	(Inherited from Object.)

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Events

	Name	Description
	Completed	Occurs when the operation completes.

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Explicit Interface Implementations

	Name	Description
	INotifyPropertyChanged.PropertyChanged	Occurs when a property value changes.

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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.

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