Visual Basic 2008 Recipes: A Problem-Solution Approach

3.8. Pass Data Between Application Domains

Problem

You need a simple mechanism to pass general configuration or state data between application domains.

Solution

Use the SetData and GetData methods of the AppDomain class.

How It Works

You can pass data between application domains as arguments and return values when you invoke the methods and properties of objects that exist in other application domains. However, at times it is useful to pass data between application domains in such a way that the data is easily accessible by all code within the application domain.

Every application domain maintains a data cache that contains a set of name-value pairs. Most of the cache content reflects configuration settings of the application domain, such as ...