MarshalAsAttribute Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Indicates how to marshal the data between managed and unmanaged code.

Inheritance Hierarchy

System.Object
  System.Attribute
    System.Runtime.InteropServices.MarshalAsAttribute

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
<AttributeUsageAttribute(AttributeTargets.Field Or AttributeTargets.Parameter Or AttributeTargets.ReturnValue, Inherited := False)> _
<ComVisibleAttribute(True)> _
Public NotInheritable Class MarshalAsAttribute _
    Inherits Attribute
[AttributeUsageAttribute(AttributeTargets.Field|AttributeTargets.Parameter|AttributeTargets.ReturnValue, Inherited = false)]
[ComVisibleAttribute(true)]
public sealed class MarshalAsAttribute : Attribute

The MarshalAsAttribute type exposes the following members.

Constructors

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 MarshalAsAttribute(Int16) Initializes a new instance of the MarshalAsAttribute class with the specified UnmanagedType value.
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 MarshalAsAttribute(UnmanagedType) Initializes a new instance of the MarshalAsAttribute class with the specified UnmanagedType enumeration member.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 Value Gets the UnmanagedType value the data is to be marshaled as.

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Methods

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Equals Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetHashCode Returns the hash code for this instance. (Inherited from Attribute.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Match When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToString Returns a string that represents the current object. (Inherited from Object.)

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Fields

  Name Description
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 ArraySubType Specifies the element type of the unmanaged UnmanagedType.LPArray or UnmanagedType.ByValArray.
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 MarshalCookie Provides additional information to a custom marshaler.
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 MarshalType Specifies the fully qualified name of a custom marshaler.
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 MarshalTypeRef Implements MarshalAsAttribute.MarshalType as a type.
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 SizeConst Indicates the number of elements in the fixed-length array or the number of characters (not bytes) in a string to import.
Public fieldSupported by Silverlight for Windows PhoneSupported by Xbox 360 SizeParamIndex Indicates which parameter contains the count of array elements, much like size_is in COM, and is zero-based.

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Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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.