Introduction Vb .Net

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Introduction toMicrosoft .NET Framework

ICT316: Advanced Visual Basic

.NET)



Lesson Plan

Introduction and acquaintance

Setting Rules for lecturesData Gathering /Collection

Discussing course structure

Lectures and discussions

Lempogo Forgor © 2011. All Rights Reserved



Course Details

Course Code: ICT316:

Pre-requisites: Visual Basic Programming

Level 300

Semester/Academic

Year: 2 /January 2011

Credit Hours: 3

Lecturer’s

Information:

Lempogo Forgor

Faculty of informatics

Office: Block A, R. 03

[email protected] Forgor © 2011. All Rights Reserved



Course Structure

ICT316: Advanced Visual Basic .NET)



Course Description

This course will train the students on Visual Basic programming

and give them an intensive instruction to GUI programming indot Net (.Net) environment through the use of Visual Basic tosolve business problems.

The goal of the course is to build student to be able to apply GUIprogramming to develop organizational software.

The course is a part of the Microsoft Visual Basic .NETcurriculum and is intended to provide Visual Basic programmerswith the skills required to create Windows Forms applications byusing the .NET Framework.




Course Educational Objectives

Upon completion of this course, the student will be able to:

Create Windows applications using a variety of GDI+ features.

Apply concepts of programming data access and web forms.

Implement programming logic and design techniques for eventdriven and object oriented programming.

Write applications that are easy for the user to understand and use.

Deploy a Windows application both with and without the .NETFramework




Teaching And Learning Methods

Class contact time will comprise of a combination oflecture, discussion and tutorial sessions.

During lectures, students will be required tocontribute by answering questions and contributing toa topic on the floor for discussion.

The class will meet for three (3) hours every week(see Time table).




Software Requirement

In class

Microsoft Visual Studio 2008

Personal

Microsoft Visual Studio 2005 – 2010




Topics And Course Schedule


Unit Topic Week

Unit 1 Introduction 1

Unit 2 Windows Database Applications 2 -3

Unit 3 Data Access with ADO.NET 4

Unit 4 Windows Database Updates 5

Unit 5 Windows Database Using Related Tables 6 – 7

Unit 6 Introduction to ASP.NET 8 – 9

Unit 7 Introduction to XML 10 -11

Unit 8 Deployment issues for desktop applications 12



Course Requirements


Activity Minimum Percentage

Assignment 5%

Group project 15%Mid Semester Exams 10%

End Of Semester Exams 70%

Total 100%



Literature And Reading MaterialsTextbook

Rod Stephens “Visual Basic 2008 Programmer’s Reference” - 2008

Additional Optional Reading

Denise Gosnell, Matthew Reynolds and Bill Forgey “Beginning Visual Basic

.NET Database Programming” 2001Bradely and Milspaugh “Advanced Programming Using Visual Basic 2005.

McGraw Hill” - 2007

Chris Sells, Justin Gehtland Addison Wesley “Windows Forms Programming in

Visual Basic.NET” - 2003

John Kauffman, Fabio Claudio, Ferracchiat “Beginning ASP.NET Databases

using VB.NET” - 2002.

Russ Basiura, Mike Batongbacal and others “Professional ASP.NET Web Services

with VB.NET” - 2002.




Literature And Reading Materials

WEB Resources

http://msdn.microsoft.com/vbasic/

http://www.mvps.org/vbnet/

http://www.vb-world.net/

http://www.gotdotnet.com/team/vb/

http://vbwire.com/






http://vbwire.com/

http://vbwire.com/











Group Project - Description

Write a three to five (3-5) page description of yoursystem, including:

specification

problem statement why you chose the topic,

ERDs, etc.




Group Project - Submission

project must be in a folder called <your ID>

project description will be an MS word document saved

with name <your ID>

both project folder and description must be zipped

together (zipped file must bear your ID)

the zip file will then be submitted




Group Project – E-mail Submission

Attached the zip file created above to an e-mail

Write the following in the subject text box:<your ID> _VB_Project

Send to my inbox.

NOTE:Be Sure it ends up in my inbox BEFORE the DEAD

LINE!!




Group Project – Submission Deadline

Completed project together with projectdescription must be submitted by the 31

of March 2011 (11:00 PM GMT):

in Person(in my OFFICE) or

by e-mail.




Course Requirements And Policies

Class Participation:Preparation and engaged participation at all class sessions are expected of

all students.

Deadlines are sacred and firm.Failure to keep deadlines will adversely affect your grade.

Attendance:regular attendance and promptness are expected at each lecture.

When absent from class, the student is responsible for getting notes andassignments from his mates.




Lesson Plan

Lecture and discussions – 2 Hours




Introduction to The Microsoft .NET

Framework

2 Hours




The Microsoft .NET Framework

Lempogo Forgor © 2011. All RightsReserved

The layer that sits between the language (in thiscase, Visual Basic) and the operating system.

The .NET Framework layer serves to provide: functionality based on the operation of the Windows

system on which it resides

libraries for other functionality (such as mathcomputations and database access).



The Microsoft .NET Framework cont.


The .NET Framework is the next iteration ofMicrosoft's platform for developing component-basedsoftware.

It provides fundamental advances in runtime servicesfor application software.

It also supports development of applications that can be free of dependencies on hardware, operatingsystem, and language compiler.



Components of .NET Framework


The .NET Framework encompasses the following:The Common Language Runtime (CLR)

A new infrastructure for managing application execution.

.NET Framework class library

A new way to expose operating system and other APIs.

ASP.NETA new web server paradigm.

A new focus on distributed-application architecture






The Common Language Runtime (CLR)


The CLR is a runtime environment that processes,

executes, and manages Visual Basic code.

The CLR includes:

The Common Type System (CTS)

for cross-language type compatibility

The Common Language Specification (CLS) for ensuring that third-party libraries can be used from all

.NET-enabled languages.






The CLR


It prevents operations that could corrupt memory and

cause the system to become unstable.

It automatically cleans up objects you do not need.

It catches common mistakes and halts your programwith an error, rather than letting it run on with

scrambled data.

It compiles your code on the fly into native machine

code, ensuring optimum performance.



.NET Framework class library


With .NET, the way operating system services areinvoked is uniform across all languages. -including code embedded in ASP.NET pages.

The .NET classes contain the tools that let you performall kinds of tasks

from writing to a database to reading from a web page.



NET Framework class library.


.NET Framework class library is an integrated classlibrary as a supremely well organized programmingtoolbox.

In the past, these capabilities either were hard-coded into the language with special functions, or

provided through separate components.




ASP NET



ASP.NET


Microsoft has replaced its Active Server Pages (ASP)

technology with ASP.NET.

The classic ASP is familiar with ASP.NET on the surface

but the underlying engine is different,

Far more features are supported ASP.NET .

ASP.NET web page code is compiled rather thaninterpreted, greatly increasing execution speed.



Web services.


Visual Studio .NET provides great tools for creating and

consuming web services - vendor-independent software services that can be

invoked over the Internet.

The .NET Framework is designed top to bottom with theInternet in mind.

ADO.NET classes provide sophisticated XML capabilities,further increasing their usefulness in a distributed environment.



The Bottom Line


Within .NET, each programming language still has its own

syntax.

For example:

every line in a C# program ends with a semicolon (;), unlike VisualBasic.

But these differences are really just superficial.

Every .NET language is built on the CLR.All .NET languages share a common set of class libraries,

which they use to do everything from displaying a Windowsmessage box to retrieving a file from the Internet.



Examples


Private Sub CreateTextBox()' This function makes a new text box,' and puts some text in it.Dim MyText As New Textbox()MyText.Location = NewPoint(25,25)MyText.Size = New Size(25,125)MyText.Text = "This was made inVB!"

Me.Controls.Add(MyText)End Sub

Here is the VB 2005 version:

private void CreateTextBox(){// This function makes a new text box,

// and puts some text in it.Textbox MyText = new Textbox();

MyText.Size = new Size(25,125);MyText.Location = newPoint(25,25);MyText.Text = "I come from

C#...";this.Controls.Add(MyText);}



What Is Visual Basic .NET?


Visual Basic .NET is the next generation of Visual Basic, but it is also a significant departure from

previous generations.

Experienced Visual Basic 6 developers will feel comfortable with Visual Basic .NET code and willrecognize most of its constructs.

Microsoft has made some changes to make Visual Basic .NET a better language and an equal player in

the .NET world.

Class keyword for defining classesInherits keyword for object inheritance,

Visual Basic 6 code cannot be compiled by the Visual Basic .NET compiler without significantmodification.

Microsoft has provided a migration tool to handle the task (mostly, anyway).



Visual Basic .NET - HISTORY

Lempogo Forgor © 2011. AllRights Reserved

Visual Basic is from Basic.

BASIC

Beginners All-purpose Symbolic Instruction Code

a programming language used more than 20 years agoas part of MS-DOS.



The Versions of Visual Basic

Visual Basic 1.0 first appeared in 1991.

It was followed by version 2.0 in 1992,

version 3.0 in 1993, version 4.0 in 1995, version5.0 in 1997, version 6.0 in 1998.

VB.NET, initially released in February 2002, was not backward compatible with the earlier versions ofVisual Basic.




What Is Visual Basic . NET?

Lempogo Forgor © 2011. AllRights Reserved

Visual Basic has gone through a few revisions since VB 6.

VB 2002 (a.k.a. VB 7), VB 2003 (VB 7.1), VB 2005 (VB8) VB 2008, etc. are all just revisions of the language as

it uses the .NET Framework.

In Visual Basic 2008, you have a new way to build user

experiences and, with it, a new way to interact with theWindows operating system.



Visual Studio

Integrated Development Environment (IDE): Contains all the tools and features needed to create, run,

and test programs

Includes an editor and compiler

Visual Studio:

IDE used to create Windows or Web-based programs

Includes Visual Basic, Visual C++, Visual C#, and Visual J#




Visual Studio (continued)

Application: program or suite of programs

Windows-based application:

Has a Windows user interfaceRuns on a desktop computer

User interface: what the user sees and interactswith when using an application




Microsoft Intermediate Language

.NET language compilers translate program statements into a

Microsoft Intermediate Language, also called IntermediateLanguage (IL)

Common Language Runtime Manages the execution of IL

instructions

Just-in-time ( JIT) compiler: translates IL into machine code

CLR allows compiled IL to be reused, regardless of which .NETlanguage was used to create it




MIL – cont.d






Visual Basic.NET and VB 6: Data Types

True is now = 1Integer Data type has changed

Short (Int16), Integer (Int32), Long (Int64)

VB 6

VB.NET

Dim intAge As Integer

Dim intID As Long

Dim intAge As Short

Dim intID As Integer

S



VB.NET: Type vs. Structure

Defining user defined types (UDT) has a new syntax

VB 6

VB.NET

Type Customer

CustomerNumber as Long

CustomerName As String

CustomerCompany As StringEnd Type

Structure Customer

Public CustomerNumber as IntegerPublic CustomerName As String

Public CustomerCompany As String

End Structure

VB NET Zero Bo nd Arra s



VB.NET: Zero Bound Arrays

Option Base 1|0 has been removed

All arrays are base 0

The following declaration has 5 elements,arrElements(0) through arrElements(4)

Dim arrElements(5) As String

VB NET: Default Properties



VB.NET: Default Properties

Default properties are no longer supported.

Important! Early Binding is key in VB6

VB 6

VB.NET

txtAddress = rs(“Addr_1”)

lblFName = “First Name”

txtAddress.Text = rs(“Addr_1”).value

lblFName.Text = “First Name”





VB.NET: Structured Exception Handling

VB.NET supports elegant error handling

VB 6

VB.NET

On Error Goto ErrTag

...

„clean up

Exit Function

ErrTag:

„error handling„clean up

End Function

Try

...

Catch

„error handling

Finally

„clean up

End Try



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Introduction Vb .Net