Converting a DataSet to a Generic List

Introduction

In this article, I present a set of classes that can be used to create a generic List<T> from a specified DataSet object. This could be useful in cases where we have data for a specified entity loaded into a DataSet and need to easily construct a generic List<> of that entity type.

To demonstrate the usage, we will consider the following scenario: We have to get an Address Book application running. We are using a database for storage, and have created the following tables:

AddressBook.JPG

  • Contact - Contains details about a contact
  • Address - Contains details about an address
  • ContactAddress - Maps a contact to multiple addresses

With this data model in mind, we proceed to write two stored procs, one to get all contacts in the system, and one to get the contact details given the contact ID. While listing all contacts, we only need the contact ID and the contact name to be displayed. While getting the contact details, we need all the contact details and the list of addresses the contact has.


See full detail: http://www.codeproject.com/KB/database/convert_dataset_list.aspx

Comments

Post a Comment

Popular posts from this blog

Basic concept and fundamentals of ASP.NET MVC (Model View Controller) Architecture

Image
This is basic concepts and fundamentals of ASP.NET Model View Controller (MVC) architecture workflow. MVC is stands for MODEL VIEW CONTROLLER. ASP.NET MVC is an architecture to develop ASP.NET web applications in a different manner than the traditional ASP.NET web development. Web applications developed with ASP.NET MVC are even more SEO (Search Engine) friendly. Microsoft .Net Framework 3.5 is minimum requirement to develop ASP.net MVC application.   MVC (Model View Controller) Interaction with Browser Like a normal web server interaction, MVC application also accepts requests and responds to the web browser in the same way.   Inside MVC Architecture The entire ASP.NET MVC architecture is based on Microsoft .NET Framework 3.5 and in addition uses LINQ to SQL Server. What is a Model? MVC   model   is basically a C# or VB.NET class A   model   is accessible by both   controller   and   view A   model   can be used to pass data ...
Read more

MVC Architecture Model In ASP.NET

Image
When developing ASP.NET applications the need of reducing code duplication increases along with their complexity. This is because testing and performing changes become very difficult tasks when having many different sources of code with the same functionality. Model View Controller architecture (or pattern) allows us to separate different parts of our applications into tiers to fulfill this need. MVC Overview Model View Controller architecture aims to separate an application into three parts: Model:  It is the business logic of an application. From an object oriented perspective it would consist of a set of classes that implement the critical functionality of an application from a business point of view. View:  It can consist of every type of interface given to the user. In ASP.NET the view is the set of web pages presented by a web application. Controller:  This part of the architecture is the most difficult to explain, hence the most difficult to implement in ...
Read more

ASP.NET MVC 3 Introduction

Image
This article will explain you the basics of ASP.NET MVC 3 Web application by using Microsoft Visual Web Developer 2010 Express Service Pack 1, which is a free version of Microsoft Visual Studio 2010.  Make sure you've installed the prerequisites listed below before you start. You can install all prerequisites by clicking this link:  Web Platform Installer . OR, you can individually install the prerequisites by the following links: Visual Studio Web Developer Express SP1 prerequisites ASP.NET MVC 3 Tools Update SQL Server Compact 4.0  (runtime + tools support) If you're using Visual Studio 2010 instead of Visual Web Developer 2010, install the prerequisites by clicking the following link:  Visual Studio 2010 prerequisites . A Visual Web Developer project with C# source code is available to accompany this topic.  Download the C# version . If you prefer Visual Basic, switch to the  Visual Basic version  of this tutorial. What You'll Build You'...
Read more