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Chapter 6: Debugging with Visual Studio 169
{
.FirstName = "Jean "
},
New Customer With
{
.FirstName = "Wim",
.LastName = "Meister"
}
}
Return customers
End Function
End Class
The GetCustomers method returns a List<Customer> (List(Of Customer) in VB). For
the purposes of this discussion, how the GetCustomers method works won’t matter. Such
a method could easily get customers from a database, Web service, or other object. For
simplicity, GetCustomers initializes a List with Customer objects. The part of this method
that is particularly important is the customer whose FirstName property is set to “Jean ”.
Notice the blank space appended to the name, which is required to make this scenario
behave as designed (i.e., to intentionally create a bug). It’s also conspicuous that the
Customer object with a FirstName property set to “Jean ” also does not have a LastName.
The Program with Bugs
The following is a search program that uses CustomerRepository to get a list of Customer
objects. The logic will iterate through the results, checking to see if the result is equal
to the search term. When the result is equal, the program prints the full name of the
customer. If no matching customers are found, the program indicates that the customer
wasn’t found:
C#:
using System;
class Program
{
static void Main()
{
var custRep = new CustomerRepository();
var customers = custRep.GetCustomers();
var searchName = "Jean";
bool customerFound = false;