Web Services Using VB.NET And ASP.NET

Course Title: Web Services Using VB.NET And ASP.NET

Course #: ASP18I

Duration: 4 days

Overview:

This course provides a realistic, hands-on, comprehensive coverage of developing Web Services using ASP.NET and VB.NET. Web Services are an evolving series of standards that enable programs on various computers to communicate with other programs on similar or disparate computers transparently over the Internet. This course teaches in detail the skills needed to program Web Services using ASP.NET. It also examines the fundamentals of SOAP and WSDL essential for creating interoperable Web services.

Topics:

What Are Web Services?

• What is a Web Service?
• Why are Web Services Needed?
• Distributed Object Computing
• Major Players in Web Services
• Web Services Interoperability
• Benefits of Web Service Integration
• SOAP
• UDDI
• Web Services Business Models
• Business Models Classified
• Microsoft MapPoint – S2C and S2B
• Service to Business Web Services
• Dollar Rent a Car – B2B
• Service Oriented Architecture (SOA)
• Services Are Independent
• ASP.NET Web Services
• Alternative Technologies
• Web Service Enhancements 3.0
• Windows Communication Framework

Web Services Fundamentals

• Understanding Web Services
• Internet Information Services
• Internet Services Manager
• Virtual Directory
• Anonymous Access
• IIS Applications
• An Echo Web Service
• Echo Web Service Using ASP.NET
• SOAP Request
• Testing the Web Service
• HTTP POST Request
• Hypertext Transfer Protocol (HTTP)
• HTTP Headers and Content
• HTTP Methods
• XML
• SOAP-Based Web Services
• Messaging Models
• Messaging Over the Web
• The SOAP Messaging Model
• SOAP Namespaces
• The SOAP Envelope
• The Message Header
• Header Entry Attributes
• The Message Body
• Service Descriptions
• Web Services Description Language
• Viewing WSDL
• Using WSDL
• wsdl.exe in .NET SDK

Developing ASP.NET Web Services

• Developing Web Services in Visual Studio 2005
• Code for a Simple Web Service
• Hello World Web Service
• Concatenate Web Service
• WebService Directive
• Service.vb
• System.Web.Services Namespace
• WebService Attribute
• WebMethod Attribute
• BufferResponse
• MessageName
• Turning Off Conformance Checking
• WS-I Basic Profile
• ASP.NET Configuration
• Multi-level Configuration
• Configuration Hierarchy
• WebService Class

Web Service Clients

• Protocols
• Accessing a Web Service
• Creating a Proxy
• Creating a Proxy using wsdl.exe
• Exploring the Generated Proxy Code
• Console Client Test Program
• Creating a Proxy via Visual Studio
• ASP.NET Web Services Programming Model
• Asynchronous Programming in Web Services
• Begin and End Asynchronous Methods
• Using a Callback Delegate
• Asynchronous Events in .NET 2.0
• State Management in ASP.NET
• Application and Session Objects
• Session Management
• Application Management
• ASP.NET Web Services Transactions
• Caching: An Overview
• Data to be Cached – Time Frame
• Output Caching
• Debugging
• Debugging a Web Service
• Enable Debugging in Web.config
• Deploying a Web Service

XML Serialization

• Serialization in .NET
• CLR Serialization
• Circular List and XML Serialization
• XML Serialization Infrastructure
• What Will Not Be Serialized
• XML Schema
• XSD Tool
• The XML Designer
• A More Complex Schema
• A Car Dealership
• Deserializing According to a Schema
• Type Infidelity
• Customizing XML Serialization
• XML Serialization and Web Services

More About SOAP

• The SOAP Messaging Model
• SOAP Namespaces
• The SOAP Envelope
• The Message Header
• Using SOAP Headers in .NET
• Using SOAP Headers on the Client
• Call Body
• Response Body
• Returning Errors
• Document Style Web Services
• Document vs. RPC Style
• Wrapped vs. Bare Style
• Literal vs. Encoded Use
• SOAP 1.2
• Specifying the Transport Protocols
• Making a Request Using SOAP 1.2

More About WSDL

• SOAP-Based Web Services
• Component-Based Software
• Component Models
• Web Services as Components
• A World without Type Information
• The Need for Service Description
• An IDL for Web Services
• Web Services Description Language
• WSDL Namespaces
• The WSDL Description Model
• A Bird’s Eye View
• WSDL Descriptors as Schema
• The Schema for WSDL Descriptors
• Associations between Components
• Interface Description
• Messaging Scenarios
• Operations: Input, Output, and Fault
• Messages
• Service Description
• Extending WSDL
• The Binding Component
• A Structural Pattern
• The SOAP Binding
• Document vs. RPC Style
• Encoded vs. Literal Use
• Using WSDL Files
• An Abstract Class
• Implementing the Web Service
• WSDL First!
• WSDL Support in .NET
• WSDL Viewer Tool
• WSDL Viewer Source Code

Data Access with Web Services

• Multiple-Project Solutions
• A Windows Application Client Project
• Adding a Web Reference
• Multiple Projects in Solution Explorer
• Implementing a Client Proxy
• Multiple-Tier Data Access
• A Data Access Web Service
• An Enhanced Web Service
• Client for Enhanced Web Service
• Objects in a ListBox
• Web Services Pass Data
• LocalCourse
• Client Code
• Type Information in Web Services
• Type Information as XML Schema
• Typed DataSets in Web Services
• Adding a Typed DataSet
• Returning a Typed DataTable
• Binding to a Web Service
• Troubleshooting Tip

WSE 3.0 and Web Services Security

• Web Services Enhancements
• Windows Communication Foundation
• When to Use WSE 3.0
• WSE Architecture
• A WSE-Enabled Web Service
• WSE Settings 3.0
• WSE Message Tracing
• Configuration File
• Testing the Web Service
• InputTrace.webinfo
• OutputTrace.webinfo
• WSE Generated Headers
• SOAP 1.2
• Math Web Service Code
• Math Client Code
• A WSE-Enabled Client
• WebServicesClientProtocol
• WSE without Visual Studio
• Web Services Security
• Server Authentication
• Client Code Using the Policy
• Policy File
• Test X.509 Certificates
• Policy Configuration File
• Service.vb
• Enabling Policy in the Client
• Application Configuration File
• Anonymous Client Code
• User Name Authentication
• User Name Authentication – Server
• User Name Authentication – Client

Appendix A: Learning Resources

Appendix B: Configuring IIS for ASP.NET 2.0

Audience: Programmers needing to integrate Web Services.

Prerequisites: Knowledge of the .NET Framework using VB.NET and an understanding of the fundamentals of XML. Some experience in ASP.NET is advantageous.