SQL Server Integration Services
No, currently we do not have a way to do that. What would you use the read-only properties for
I need to generate the value for a custom property internally and make it visible to developers, but I don't want them to modify it to ensure the data flow works correctly.
Hope we'll have a way to do that in the future.
Well, for now I would do what Jay suggested.
Feel free to open a request for adding this feature on the connect site.