Article
11/17/2011

STAThreadAttribute Class

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

Note: This API is now obsolete.

Indicates that the COM threading model for an application is single-threaded apartment (STA).

Inheritance Hierarchy

System.Object
System.Attribute
System.STAThreadAttribute

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

Syntax

'Declaration
<ComVisibleAttribute(True)> _
<AttributeUsageAttribute(AttributeTargets.Method)> _
<ObsoleteAttribute("STAThreadAttribute is not supported in this release. It has been left in so that legacy tools can be used with this release, but it cannot be used in your code.",  _
    True)> _
Public NotInheritable Class STAThreadAttribute _
    Inherits Attribute

[ComVisibleAttribute(true)]
[AttributeUsageAttribute(AttributeTargets.Method)]
[ObsoleteAttribute("STAThreadAttribute is not supported in this release. It has been left in so that legacy tools can be used with this release, but it cannot be used in your code.", 
    true)]
public sealed class STAThreadAttribute : Attribute

The STAThreadAttribute type exposes the following members.

Constructors

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

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Methods

	Name	Description
	Equals	Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
	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.)
	GetHashCode	Returns the hash code for this instance. (Inherited from Attribute.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Match	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

This type is obsolete in Silverlight.

Version Information

Silverlight

Obsolete (does not compile) in 3 and later

Silverlight for Windows Phone

Obsolete (does not compile) in Windows Phone OS 7.0 and later

XNA Framework

Obsolete (does not compile) in Windows Phone OS 7.0 and later

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.

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