Book Image

NHibernate 2 Beginner's Guide

By : Aaron Cure
Book Image

NHibernate 2 Beginner's Guide

By: Aaron Cure

Overview of this book

<p>NHibernate is an open source object-relational mapper, or simply put, a way to retrieve data from your database into standard .NET objects. Quite often we spend hours designing the database, only to go back and re-design a mechanism to access that data and then optimize that mechanism. This book will save you time on your project, providing all the information along with concrete examples about the use and optimization of NHibernate.<br /><br />This book is an approachable, detailed introduction to the NHibernate object-relational mapper and how to integrate it with your .NET projects. If you're tired of writing stored procedures or maintaining inline SQL, this is the book for you.<br /><br />Connecting to a database to retrieve data is a major part of nearly every project, from websites to desktop applications to distributed applications. Using the techniques presented in this book, you can access data in your own database with little or no code.<br /><br />This book covers the use of NHibernate from a first glance at retrieving data and developing access layers to more advanced topics such as optimization and Security and Membership providers. It will show you how to connect to multiple databases and speed up your web applications using strong caching tools. We also discuss the use of third-party tools for code generation and other tricks to make your development smoother, quicker, and more effective.</p>
Table of Contents (19 chapters)
NHibernate 2
Credits
About the Author
About the Reviewers
Preface
Index

Basic data binding techniques


There are a few simple techniques you will need to employ to make data binding work. The basic items we will need are a source of data, some data items to bind, and a control that allows data binding.

Essentially, a Data Source is an instance or a collection of instances that we will use to populate our control(s). For instance, if we had a group of products, we could create an IList of classes containing image and product name, size, weight, price, and so on.

There are two common ways to set the DataSource property of a control. The first is to directly bind it from the code behind or within another object. The second is to use a DataSourceId to specify the ID of a control on the page such as an ObjectDataSource control from which the data is coming.

The individual data items that make up the Data Source can be just about anything, from a simple string to a full-blown POCO with properties of child POCOs.

There are several controls that allow data binding, such...