Sunday, June 13, 2010
Visual webpart allows to query any list(without writing CAML query) or database with linq query and .ascx code provides the presentation logic for particular webart
BCS external content type allows the contents of list to be used by external application like outlook
Microsoft Business Connectivity Services (BCS), formerly named the Business Data Catalog, provides read/write access to external data from line-of-business (LOB) systems, Web services, databases, and other external systems within Microsoft SharePoint 2010. SharePoint 2010 has product features that can use external data directly, both online and offline. Developers can gain access to a rich set of features and rapidly build solutions by using familiar tools such as Microsoft Visual Studio 2010 and Microsoft SharePoint Designer 2010.