VB.NET and Visual Studio 2022 Intro

• The module introduces Visual Basic and Visual Studio 2022 and covers the history of Visual Basic, VB .NET development environment, and basic IDE features.

Objectives

• Understand Windows Applications
• Describe Web Applications and Services
• Identify .NET Framework components
• Use the VB.NET IDE
• Create programs using .NET Framework

VB.NET Overview

• An update to Visual Basic targeting Microsoft .NET Framework
• Similarities and differences exist compared to Visual Basic
• Supports object-oriented features: abstraction, encapsulation, inheritance, and polymorphism
• Used for creating Windows, Web, Mobile, and Office applications on the .NET Framework

What is VB.NET?

• Stands for Visual Basic .NET, a Microsoft-developed programming language
• Replaced Visual Basic 6 in 2002
• Object-oriented, supporting encapsulation, polymorphism, abstraction, and inheritance
• Visual Basic .ASP NET runs on the .NET framework and accesses .NET libraries
• Allows rapid creation of various applications

VB.NET Language Design

• Designed to be human-readable and accessible to programmers of all levels
• Built on .NET Framework for scalability and reliability
• Empowers VB.NET programmers to create object-oriented programs
• Interoperates seamlessly with other .NET languages such as Visual C#, Visual J#, or Visual C++

VB.NET Applications

• Used to create Console Applications, Windows Applications, Web Applications, Web Services, and Mobile Applications

VB.NET Features

• Not case-sensitive
• Object-oriented; treats everything as an object
• Automated garbage collection
• Supports Boolean conditions for decision making
• Simple multithreading
• Simple generics
• Standard library
• Events management
• References external objects used in application
• Attributes provide element information
• Windows Forms allow form inheritance

Advantages of VB.NET

• Automatic code formatting
• Object-oriented constructs for enterprise-class code
• Create web applications with performance counters, event logs, and file system
• Visual forms designer with drag-and-drop functionality
• Connect to applications created in other .NET languages
• Features like docking, automatic control anchoring, and in-place menu editor for web development

Disadvantages of VB.NET

• Cannot handle pointers directly, requiring more processing time
• Large talent pool makes job security challenging

History of VB.NET

• Launched in 2002 as a successor to Visual Basic, relying on .NET version 1.0
• VB.NET 7.1 released in 2003 with improvements like .NET Compact Framework support
• Visual Basic 2005 (VB.NET 8.0) introduced features like partial classes and generics
• VB 9.0 in 2008 added anonymous types, LINQ support, and Lambda expressions
• VB 2010 focused on bringing VB.NET and C# closer together
• VB 2012 included call hierarchy and asynchronous programming features
• VB 2015 introduced inline null checks and string interpolation
• VB 2017 improved source code organization
• VB 2019 allows coding in multiple languages and platforms

Visual Studio 2022 and .NET 6

• Microsoft made the latest versions available on November 8, 2021
• Visual Studio 2022 is the first 64-bit version, effectively using system resources
• Includes edits, debug improvements, Hot Reload, and Live Preview
• .NET 6 available for Windows, Linux, and macOS
• Provides a unified platform with performance improvements and Apple Arm64 Silicon support
• The .NET 6 release is a Long-Term Support (LTS) version supported for three years

Introduction to Visual Studio

• Integrated Development Environment (IDE) by Microsoft for GUI, console, Web applications, web apps, mobile apps, cloud, and web services
• Supports managed and native code
• Supports Windows Store, Microsoft Silverlight, and Windows API
• Supports coding in C#, C++, VB, Python, JavaScript, and many more languages

Evolution of Visual Studio

• First version (Visual Studio 97) released in 1997
• Visual Studio 2017 (version 15.0) is the latest version, released on March 7, 2017
• Supported .Net Framework Versions in the latest Visual Studio are 3.5 to 4.7
• Java was supported in old versions, but not in the latest version

Visual Studio Editions

• Community: Free, fully-featured IDE for creating modern applications, with limitations for enterprise organizations
• Professional: Commercial edition with XML/XSLT editing, Server Explorer, and Microsoft SQL Server integration
• Enterprise: An integrated solution for teams with high quality and scale needs

Updated User Interface

• Design is more consistent and user-friendly including new icons and fonts, and more personalization
• Cascadia Code font is now the default editor font
• Visual Studio integrates with Accessibility Insights

New Icons

• The icons have been updated to be consistent across different icons while remaining legible and familiar to the user

Theme Support

Offers the ability to sync with your operating system theme. The dark theme has been updated to better improve accessibility. Includes a Theme Converter that converts Visual Studio Code themes.

Inlay Hints

• Visual Studio now includes inlay hints for code completion and code lens. It can display parameter name hints for literals and more.

Speeding Up Visual Studio

• Much faster and efficient in Visual Studio 2022
• 64-bit application; no longer limited to 4GB of memory
• Solution loading and file searching are faster
• Improved the Fast up to date feature

New Debugging Features

• Enhanced the debugging features of Visual Studio

Breakpoints

• Include temporary breakpoints for breaking only once and dependent breakpoints that only break when another breakpoint is hit

Force Run to Cursor

• Executes code up to the code at the cursor

IntelliCode

_ Using AI, improves IntelliSense, gives right code completion

Git Support

• Multiple-repository support
• Can track changes across repositories in project

Hot Reload

• Modifies application’s managed code while it is running, without needing to stop or pause
• Saves time without needing to pause application to see source code changes

Visual Studio 2022 for Mac

• Tailored for the Mac, will look familiar while using macOS UI

Bye Bye .NET 5

• Microsoft released .NET 6, which includes the .NET 6 SDK in the Visual Studio installation

Supported Versions

• .NET 6, .NET 5, .NET Core 3.1

Creating a .NET console application using Visual Studio

• Open Visual Studio 2022
• Starting a new project
• Choose project template with code scaffolding to get started
• On the create a new project page, enter console in the search box.
• Next, choose C# or Visual Basic from the language list, and then choose all platforms from the platform list.
• Choose the Console Application template, and then choose Next.
• In the configure your new project dialog, enter HelloWorld in the Project name box, then choose Next.
• Display Hello World in the console window
• Code is in the program.cs or program.vb file

The Components of the IDE Screen

IDE stands for Integrated Development Environment. The components are: Menu bar, standard tool bar, toolbox window, form designed, code editor, solution explorer, and properties window

Code Editor

• Every form has a code editor, which is where you write code for your program. The Code Editor can be opened in a variety of ways, such as double-clicking on a form or choosing code from the View menu.

Standard Visual Basic Controls in Toolbox

• Pointer, button, checkbox, checked list box, combo box, date time, picker, label, link label, list box, list view, masked textbox

Solution Explorer

• Solution Explorer is provided to help you manage projects. The components that make up a project, such as forms, descend from the tree.
• All the visual basic controls have properties, and the majority of ActiveX controls do as well The window displays the available properties for an individual control or the forms on which they are placed. These properties can be changed as you design an application, or you can alter them in code

VB.Net Data Types

• Boolean, Integer, String
• Implicit Conversion and Explicit Conversion

VB.NET Implicit and Explicit Conversions

• Describes the scope and accessibility of an object and its members
• Access Specifiers are Public, Private, Protected, Friend, Protected Friend

Visual Basic .Net IF ELSE

• Conditionally examine data using comparison operators and logical operators
• FOR NEXT Loop, execute the loop body to a fixed number of times -VB.NET While End While loop, if condition is true, loop body statements are executed

VB.NET Windows Form and Controls

• Helps to understand development environment and identify some of the frequently used programming tools in Visual Studio IDE. Objectives include: Understand VB.Net Program Basic Components. can compile and execute VB. Net Programs, Describe the VB.Net Basic Syntax, Can create a VB. Net Solution, understand what is Design Form and Codes of VB.Net

The Windows Form Controls section covers topics like:The Appearance of Forms

how to place controls on forms, windows controls, standard controls & Active X controls, the three important Elements of visual basic controls, control properties, Setting Properties: object.property= value

Control Methods

A procedure by class member that cause object to perform, 2 Methods you'll use call public methods of ToolBox controls If no existing method add a method to glass (Messagae Bo, Show) Control Events are signals to inform an event has occurred

Basic Controls

VB.Net has wide controls for rich User Inferface, all functionalities are in respective control classes defined in system.Windows.Forms namespace. List of controls: form,textbox, list label, button,list box, cobo box, radio, list check box, picture box, progress, srcoll datatime, tree and list view.

Steps to Create a New WinForms App

After Visual Baisc Template is selected, Visual Studio opens project. After Project is created controls cna be created by adding controls to the form. If Toolbox tab is not visible, go to View > Toolbox. You may dock or pin to wiondow with pin idon on toolbox. Next, add a button to the form, and select the control from to the toolbox window, and drog it into the form. Go to properties section, and select "click this" and press enter. Go into design section, and change form button name

VB.NET Properties Windows and Event Handler

• The module is about VB.Net Properties Windows and Event Handler which supports all Visual Studio products. Objectives include: Understand VB.Net Properties Window, Can copile & execute VB.net Program.

The Lecture

• Visual studio Properites window is for COM & COMO components to list design -time properties
• The properties window opens by pressing FA on the keyboard, it show config- Independent properties and events of selected objects.

Using the Properties Window

• Displayed events related to selected object in a from, for code binding and event association

Properties Window Display Rules

• Displays properties for current object - displays for selected Objects in VBA or properties in the window - Select object,Project Explorer and return to properites. Object properties are displayed in 2 panes name object value. To change left pane, set properites click left pane, some properties have predefined list of values

Event Handler in Visual Basic

is an action that a program makes, such as mouse click that must have code respond Event Handler is Sub Procedure, don't call same sub procedures, identifies as handler for the event

Introduction to Visual Basic .NET (VB.NET) and Visual Studio 2022. Covers the history of Visual Basic, the VB .NET development environment, and basic IDE features. VB.NET is an object-oriented language used for building Windows, Web, Mobile, and Office applications on the .NET Framework.