December 2001
Beginner
464 pages
13h 51m
English
Content preview from Programming Visual Basic .NETBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Consuming a Web Service
On the .NET platform, consuming a web service is as easy as creating one. This section contains the steps for creating a web-service client that can call the web service shown in Example 7-1.
Consuming a Web Service in Visual Studio .NET
To use a web service from a Visual Studio .NET project, right-click on the References node in the Solution Explorer window, and select Add Web Reference. This causes the Add Web Reference dialog box to appear.
In the Address field of the Add Web Reference dialog box, enter the
URI of a web-service description document, and click the Add
Reference button. When adding references to web services hosted by
ASP.NET, the web-service description document is obtained by
appending ?wsdl to the path of the service itself.
For example: http://www.company.com/myWebService.asmx?wsdl
or http://localhost/WebServices/Hello-WebService.asmx?wsdl.
Visual Studio .NET reads the web-service description document and builds a corresponding proxy class that knows how to access the described web service. The proxy class is local and exposes the same functionality as the web service. To call the web service from within the project, instantiate the proxy class and call its methods. For example, the following code instantiates the HelloWebService class and calls its SayHello method in response to a button click:
' Assumes that this code is part of a form having a button named ' btnOk_Click, a text box named txtName, and a text box named txtResult. ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.