ASP.NET Web Pages - Adding a Database
Learn ASP.NET Web Pages by building a web site from scratch.
Part III: Adding a Database.
What We Will Do
In this chapter we will:
- Create a web page to list data from a database
Displaying Data from Database
With Web Pages, you can easily display data from a database.
You can connect to an existing database, or create a new database from scratch.
In this example we will connect to an existing SQL Server Compact database.
If you want to learn how to create a database for your web, please go to the chapter Web Database.
Adding a Customers Page
In the "DemoWebPages" folder, create a new CSHTML file named "Customers.cshtml".
Replace the code in the file with the code from the example below:
var db = Database.Open("Northwind");
var query = db.Query("SELECT CompanyName,City,Country FROM Customers");
@foreach(var row in query)
Run example »
The Database.Open(name) method will connect to a database in two steps:
First, it searches the application's App_Data folder for a database that matches the name parameter without the file-name extension.
If no file is found, it looks for a "connection string" in the application's Web.config file.
(A connection string contains information about how to connect to a database. It can include a file path, or the name of an SQL database, with full user name and password)
This two-step search makes it possible to test the application with a local database, and run the application on a web host using a connection string.
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