中文译文

 

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Introduction

This tutorial doesn’t cover the theoretical basics of the new features and controls, instead it concentrates on the practical example of using the new features. This tutorial covers the following features:

• LINQ (Language Integrated Query) for the data manipulations
• ListView control for presenting the data
• LinqDataSource for binding data
• DataPager for pagination
• ASP.NET AJAX for getting rid of the unncecesassary page reloads

Requirements

• Visual Studio 2008
• SQL Server

Project
Our project is quite simply, it's just a guestbook, but it's good for demonstrating the cool features of ASP.NET 3.5 and .NET 3.5 in action.

So, just open Visual Studio and create a new C# website.

Database design

We need to create a database when the comments will be stored. We’ll just create a database with a single table that will keep the comments posted by the authors. We can create it in Server Explorer without leaving Visual Studio.
Don’t forget to set the Id field as an identity.
Let’s populate the database as well, so that we’ll have some data to display, just execute these queries:

LINQ
Then, we need to create a LINQ To SQL class that will be using for the data manipulations (retrieving and inserting). We open Website->Add New Item and choose LINQ To SQL Classes

Then we open Server Explorer and drag and drop our table on the workspace.