Managed extensibility with System.AddIn

Question

I am using System.AddIn to add new component to my application. Application successfully pick the newly added add in.

Currently if I want to add new addin then I need to create new project of class library type and then I need to code for that addin.

is it possible to add multiple addin to same class library so every time I need not to add new project?

If possible then how I find appropriate token at the time of loading the add in.

Thanks in advance...

Answer 1

It's definitely possible to have multiple add-ins in one assembly. Every class that is marked with [System.AddIn.AddInAttribute] and extends the contract that you specify when doing a FindAddIns will resolve to a separate AddInToken.

In order to filter the set of tokens that are discovered, have a look at System.AddIn.Pipeline.QualificationDataAttribute. This attribute lets you add name/value metadata to your add-in types that you can then access from AddInToken.