.NET Framework Class Library
OneWayAttribute Class

Marks a method as one way, without a return value and out or ref parameters.

Inheritance Hierarchy
SystemObject
   SystemAttribute
    System.Runtime.Remoting.MessagingOneWayAttribute

Namespace:   System.Runtime.Remoting.Messaging
Assembly:  mscorlib (in mscorlib.dll)
Syntax
<[%$TOPIC/ya97dtad_en-us_VS_110_2_0_0_0_0%]([%$TOPIC/ya97dtad_en-us_VS_110_2_0_0_0_1%].Method)> _
<[%$TOPIC/ya97dtad_en-us_VS_110_2_0_0_0_2%](True)> _
Public Class OneWayAttribute _
	Inherits [%$TOPIC/ya97dtad_en-us_VS_110_2_0_0_0_3%]
[[%$TOPIC/ya97dtad_en-us_VS_110_2_0_1_0_0%]([%$TOPIC/ya97dtad_en-us_VS_110_2_0_1_0_1%].Method)]
[[%$TOPIC/ya97dtad_en-us_VS_110_2_0_1_0_2%](true)]
public class OneWayAttribute : [%$TOPIC/ya97dtad_en-us_VS_110_2_0_1_0_3%]
[[%$TOPIC/ya97dtad_en-us_VS_110_2_0_2_0_0%]([%$TOPIC/ya97dtad_en-us_VS_110_2_0_2_0_1%]::Method)]
[[%$TOPIC/ya97dtad_en-us_VS_110_2_0_2_0_2%](true)]
public ref class OneWayAttribute : public [%$TOPIC/ya97dtad_en-us_VS_110_2_0_2_0_3%]
[<[%$TOPIC/ya97dtad_en-us_VS_110_2_0_3_0_0%]([%$TOPIC/ya97dtad_en-us_VS_110_2_0_3_0_1%].Method)>]
[<[%$TOPIC/ya97dtad_en-us_VS_110_2_0_3_0_2%](true)>]
type OneWayAttribute =  
    class 
        inherit [%$TOPIC/ya97dtad_en-us_VS_110_2_0_3_0_3%] 
    end

The OneWayAttribute type exposes the following members.

Constructors
  NameDescription
Public method OneWayAttributeCreates an instance of OneWayAttribute.
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Properties
  NameDescription
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.)
Protected method FinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
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.)
Protected method MemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
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

When one-way methods are invoked, no reply message or status or information is expected. The OneWayAttribute is used to indicate that the method has a void return and only in parameters. The method cannot throw any exceptions, and ref parameters and return values are not supported. The method can execute synchronously or asynchronously with respect to the caller. The caller cannot make assumptions that the one-way call has executed on the server object when thread control returns.

Version Information

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Platforms

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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.