Once this backend groundwork has been laid, we'll move into reporting, showing how to display, summarize, collect, and validate data from a web application. We'll start with creating a software architecture composed of a Data Access Layer (DAL) using Typed DataSets, a Business Logic Layer (BLL) that enforces custom business rules, and a presentation layer composed of ASP.NET pages that share a common page layout. This is the first tutorial in a lengthy series that will explore techniques for implementing these common patterns in ASP.NET 2.0. We create databases to store the data, code to retrieve and modify it, and web pages to collect and summarize it. IntroductionĪs web developers, our lives revolve around working with data. In this tutorial we'll start from the very beginning and create the Data Access Layer (DAL), using typed DataSets, to access the information in a database.
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