December 2008
Intermediate to advanced
368 pages
11h 2m
English
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Referencing an ASMX Web Service
Before you can use the service, the Silverlight client application
must add a service reference to the ASMX web service that was created.
You can add a service reference by going to the Project Explorer,
right-clicking the Service Reference node for the SilverlightEmailClient project, and selecting
the Add Service Reference menu option. A window will open, which you can
use to search for (or discover) any services available on the computer.
Alternatively, you can enter a URL to a specific web service. Because
the EmailService.asmx service is on
the same computer as this solution, you can click the Discover button.
After a few moments, the Silverlight 2 client application will find the
EmailService.asmx service and you can
select it. This window will search for any service that exposes Web
Services Description Language (WSDL), which makes it discoverable. Both
WCF web services and ASMX web services support SOAP 1.1 and are
discoverable, so you can find them through this window.
You can add as a service reference from a Silverlight 2
application any SOAP service that is discoverable and supports the basic
profile of SOAP 1.1. Discoverable services are those that support WSDL.
These include both WCF services and ASMX services, as shown in this
chapter. You can access services that do not describe themselves (such
as REST, POX, and RSS) via WebClient
and HttpWebRequest, which we will
discuss in later chapters.
Figure 5-4 shows
the EmailService.asmx service ...
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