C# 4 and .NET 4

1382 ❘ ChaPTer 46 messAGe QueuinG
CourseOrderService.CourseOrderAdded += (sender, e) =
{
courseOrders.Add(e.CourseOrder);
buttonProcessOrder.IsEnabled = true;
}
var host = new ServiceHost(typeof(CourseOrderService));
try
{
host.Open();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
this.DataContext = courseOrders;
code snippet CourseOrderReceiver/CourseOrderReceiverWindow.xaml.cs
The WPF elements in the XAML code now make use of data binding. The ListBox is bound to the data
context, and the single - item controls are bound to properties of the current item of the data context:
< ListBox Grid.Row="1" x:Name="listOrders" ItemsSource="{Binding}"
IsSynchronizedWithCurrentItem="true" / >
< !-- ... -- >
< TextBox x:Name="textCourse" Grid.Row="0" Grid.Column="1"
Text="{Binding Path=Course.Title}" / >
< TextBox x:Name="textCompany" Grid.Row="1" Grid.Column="1"
Text="{Binding Path=Customer.Company}" / >
< TextBox x:Name="textContact" Grid.Row="2" Grid.Column="1"
Text="{Binding Path=Customer.Contact}" / >
code snippet CourseOrderReceiver/CourseOrderReceiverWindow.xaml
The application confi guration fi le defi nes the netMsmqBinding . For reliable messaging, transactional queues
are required. To receive and send messages to non - transactional queues, the exactlyOnce property must be
set to false .
netMsmqBinding is the binding to be used if both the receiver and the sender
application are WCF applications. If one of these applications is using the System
.Messaging API to send or receive messages, or is an older COM application, you can
use msmqIntegrationBinding.
< xml version="1.0" encoding="utf-8" >
< configuration >
< system.serviceModel >
< bindings >
< netMsmqBinding >
< binding name="NonTransactionalQueueBinding" exactlyOnce="false" >
< security mode="None" / >
< /binding >
< /netMsmqBinding >
< /bindings >
< services >
< service name="Wrox.ProCSharp.Messaging.CourseOrderService" >
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