Add, delete, and rearrange MEF parts

Addpart/removepart

Using system;
Using system. componentmodel. composition;
Using system. componentmodel. Composition. Hosting;
Using system. componentmodel. Composition. primitives;

Class Program
{
Static void main (string [] ARGs)
{
VaR catalog = new assemblycatalog (typeof (Program). Assembly );
VaR Container = new compositioncontainer (Catalog );
VaR root = New Root ();

// Add external part
Container. composeparts (Root );

//... Use the composed root instance

// Removes external part
Batch = new compositionbatch ();
Batch. removepart (Root );
Container. Compose (batch );
}
}

Public class Root
{
[Import (requiredcreationpolicy = creationpolicy. nonshared)]
Public nonshareddependency Dep {Get; set ;}
}

[Export, partcreationpolicy (creationpolicy. nonshared)]
Public class nonshareddependency: idisposable
{
Public nonshareddependency ()
{
}

Public void dispose ()
{
Console. writeline ("disposed ");
}
}

Recomposition Rearrangement

Public class httpserverhealthmonitor
{
[Importmany (allowrecomposition = true)]
Public imessagesender [] senders {Get; set ;}