Microsoft 9GD00001 manual Creating a Customer Controller, Creating a new Controller

268Microsoft Visual Studio 2010: A Beginner’s Guide

(From cust In m_ctx.Customers Select cust).ToList()

Return customers

End Function

Public Sub DeleteCustomer(ByVal custID As Integer)

Dim customer =

(From cust In m_ctx.Customers Where cust.CustomerID = custID Select cust).SingleOrDefault()

m_ctx.Customers.DeleteOnSubmit(customer) m_ctx.SubmitChanges()

End Sub

End Class

You can have more methods in a repository for doing whatever is required with data for the application, but the items in Listing 9-6 are typical. The LINQ to SQL operations are consistent with the material covered in Chapter 7, so there’s no need to repeat the same material here. The purpose of the repository is to give the Controller an object to work with for getting data without filling up Controller methods with data access logic. Let’s see how the Controller works with this repository next.

Creating a Customer Controller

Right-click the Controllers folder, select Add Controller, or press CTRL-M, press CTRL- C, and name the file CustomerController. Check the box for “Add action methods for Create, Update, and Details scenarios” as shown in Figure 9-4.

Figure 9-4 Creating a new Controller