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TypeDescriptor.CreateAssociation Method

Creates a primary-secondary association between two objects.

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

[PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")]
public static void CreateAssociation(
	Object primary,
	Object secondary


Type: System.Object

The primary Object.

Type: System.Object

The secondary Object.


One or both of the parameters are null.


primary is equal to secondary.

The CreateAssociation method creates an association between a primary and a secondary object. Once an association is created, a designer or other filtering mechanism can add properties that route to either object into the primary object's property set. When a property invocation is made against the primary object, the GetAssociation method will be called to resolve the actual object instance that is related to its type parameter.

A WeakReference is used to maintain the association between the primary and secondary object; therefore, this method does not prevent either object from being finalized and reclaimed by garbage collection.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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