How to update a CRM 2011 Entity using LINQ in a Plugin?

Question

We are able to create new entities without any issues, but updating an existing entity in a plugin this does not appear to be working. This is for CRM 2011.

Answer 1

You have to mark the object as modified in order to get it submitted to the server. See OrganizationServiceContext.UpdateObject (Entity)

You should add crmContext.UpdateObject(contact); before crmContext.SaveChanges();