ComposablePartCatalog.GetExports Method (ImportDefinition)


The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

Gets a list of export definitions that match the constraint defined by the specified ImportDefinition object.

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

public virtual IEnumerable<Tuple<ComposablePartDefinition, ExportDefinition>> GetExports(
	ImportDefinition definition


Type: System.ComponentModel.Composition.Primitives.ImportDefinition

The conditions of the ExportDefinition objects to be returned.

Return Value

Type: System.Collections.Generic.IEnumerable<Tuple<ComposablePartDefinition, ExportDefinition>>

A collection of Tuple<T1, T2> containing the ExportDefinition objects and their associated ComposablePartDefinition objects for objects that match the constraint specified by definition.

Exception Condition

The ComposablePartCatalog object has been disposed of.


definition is null.

Overrides of this method should never return null. If no ExportDefinition matches the conditions defined by definition, return an empty IEnumerable<T> object.

.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 4.0
Return to top