Chapter 2. Getting Started
In the previous chapter, we took a look at Entity Framework, including its architecture and its features. We also had a look at the new and enhanced features in Entity Framework 7. Note that Entity Framework 6.0 ships with Visual Studio 2013, but you can also install it via NuGet if needed. Also, Entity Framework 7 is yet to be released.
In this chapter, we will design our Security database, create an Entity Data Model (EDM) on top of it, and then use the EntityDataSource control to bind data exposed by the EDM to a GridView control.
The DataSource controls are those that are used to connect to a data source and then retrieve data from those data sources. If you use DataSource controls, the need of writing tedious code to perform Create, Read, Update, Delete (CRUD) operations on data-based controls is eliminated. The EntityDataSource control is a DataSource control that can connect to the data exposed by the EDM to perform CRUD operations.
In this chapter, we will cover the following points:
- Designing the
UserAuthenticationdatabase - Creating an EDM for the
UserAuthenticationdatabase - Introducing the EntityDataSource control
- Implementing our first application using Entity Framework 6
The latest version of Entity Framework is Entity Framework 7. As of this writing, Entity Framework 7 hasn't been released. It will be released as a "pre-release" at the same time ASP.NET 5 is released. You will be able to install the pre-release version of EF 7 using NuGet.
There are many changes coming up in Entity Framework 7—it is being rewritten from the ground up. The major goals of Entity Framework 7 include its support for new platforms and new data stores. So, support for additional providers will also be included in Entity Framework 7:
We will start this chapter with a discussion on our UserAuthentication database that we will be using throughout this book, followed by a discussion on how we can create an EDM using the Security database.