Enterprise Development In Visual Basic .NET

Course: VBADV

Duration: 3 Days

Level: II

Course Summary

In this course, you'll learn about the services offered by Enterprise Services and when to use them. You'll see how to use asynchronous programming and threading in your applications, and how to use transactions to prevent data corruption while reducing coding effort. The course shows you how to use MSMQ and Queued Components to create client-server applications that work even when the client and server are disconnected. You'll also learn how to manage scarce resources with the Dispose pattern and object lifetime options such as pooling and just in time activation.

This course is focused on the "back end" part of enterprise programming, not the user interface. The sample applications are Windows applications, to keep the pre-requisites to a minimum. You'll be able to use these same concepts as the back end to a web (ASP.NET) application as well.

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Topics Covered In This Course

Introduction to Enterprise programming

Characteristics of an Enterprise Application
Asynchronous Programming and Threading
Interoperability and Reuse
Transactions
Security
The "ilities"

Asynchronous Programming

Advantages of Asynchronous Programming
The BeginSomething and EndSomething Function Calls
The Sample Application
Calling a Begin Function and Setting Up Notification
Calling an End Function
Calling a Web Service Asynchronously

Threading

Threading Concepts
Starting a Thread
Passing Parameters to a Thread
Getting Answers from a Thread
Updating Form Values from the New Thread
Marshalling to the Form Thread
Thread Priorities
Stopping a Thread
Preventing Collisions

Enterprise Services Overview

What Are Enterprise Services?
Is COM Dead? Is COM+ Dead?
What Is a Serviced Component?
The Global Assembly Cache
Interop: COM Calling .NET
Deploying a COM Project that Calls .NET
Interop: .NET Calling COM
Interop: Pinvoke

Transactions

Transaction Concepts
Context
A Transaction Example
Using Transactions
Ending a transaction

Role-Based Security

What Is Role-Based Security?
Checking Roles in Code
Demanding Roles with Attributes
Establishing Roles: Windows User Groups
Enterprise Services Roles
Establishing Roles with Component Services

Controlling Object Lifetime

Resource Management and Dispose()
Object Pooling
Just in Time Activation
Synchronization
Lifetime Sample
Combinations of Enterprise Services Attributes

Wrapping a Legacy App as a Web Service in COM+

Why use COM+ to Expose a Web Service?
Using Component Services to Expose a Web Service
Requesting SOAP Support
Using the Wrapped Component

Messages with MSMQ

What Is MSMQ?
Setting Up a Queue
Sending a Message to a Queue
Processing a Message from a Queue
MSMQ Acknowledgments
More Reliability Features
MSMQ and Transactions

Components

What Are Queued Components?
Sample Application
Creating the Component and the Interface
Accessing the Recorder from a Client
Handling Errors
Loosely Coupled Events

Considerations for Scalability, Reliability, and the Other "ilities"

High-Performance Enterprise Applications
Availability
Maintainability
Manageability
Performance
Reliability
Scalability
Security

What You Can Expect

At the end of this course, delegates will be able to:

Identify the Enterprise Services that may be useful for a particular application.
Use asynchronous programming and threading to speed the response time of your applications.
Use COM components from a .NET application and .NET objects from a COM application.
Add transaction support to an enterprise application.
Use Message Queuing and Queued Components to write distributed applications that are more robust and available.
Manage scarce resources and object lifetimes.

Who Should Take This Course

Developers that need to build distributed enterprise applications.

Recommended Prerequisites

In order to understand some of the problems and dilemmas that present to a developer creating an enterprise application, you should be an experienced programmer (in any language). The course uses Visual Basic .NET, so you should already be comfortable with the .NET Framework and coding in Visual Basic .NET, including how to compile and run applications in Visual Studio .NET.

Training Style

Instructor led with hands on labs.

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Related Courses

Code	Course Title	Duration	Level
VBNWF	Visual Basic .NET Programming and WinForm Applications	5 Days	I	Details
LINQVB	Microsoft LINQ Using Visual Basic 2008	2 Days	II	Details

Every student attending a Verhoef Training class will receive a certificate good for $100 toward their next public class taken within a year.

You can also buy "Verhoef Vouchers" to get a discounted rate for a single student in any of our public or web-based classes. Contact your account manager or our sales office for details.

Schedule For This Course
There are currently no public sessions scheduled for this course. We can schedule a private class for your organization just a couple of weeks from now. Or we can let you know the next time we do schedule a public session.

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