title: update connection string for dynamic data entities web application
body: <p>Using VS 2010, I have created a simple dynamic data entities web application (using the template provided in VS 2010).  It works fine.  However, I want to change the "InitialCatalog" in the model connection string at runtime, via a user selection. I know how to create the new connection string, but I don't know how to update the entity model with the new string.  It is possible to update the model to use the new connection string at runtime, and if so, how?</p>