TypeDescriptor.GetAssociation Method

Returns an instance of the type associated with the specified primary object.

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

public static Object GetAssociation (
	Type type,
	Object primary
public static Object GetAssociation (
	Type type, 
	Object primary
public static function GetAssociation (
	type : Type, 
	primary : Object
) : Object
Not applicable.



The Type of the target component.


The primary object of the association.

Return Value

An instance of the secondary type that has been associated with the primary object if an association exists; otherwise, primary if no specified association exists.

Exception typeCondition


One or both of the parameters are a null reference (Nothing in Visual Basic).

If a previous association has been made for the type parameter using the CreateAssociation method, then the GetAssociation method returns the correct secondary object to invoke for the requested type. Otherwise, GetAssociation searches for a compatible designer for type and returns the designer if one is found. This method never returns a null reference (Nothing in Visual Basic).

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

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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