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Programming Visual Basic 2005

Name: Programming Visual Basic 2005
Author: Jesse Liberty
ISBN: 9780596552718

by Jesse Liberty

September 2005

Intermediate to advanced

576 pages

14h 23m

English

O'Reilly Media, Inc.

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Programming Visual Basic 2005
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A Note Regarding Supplemental Files
Preface
What You Need to Know About This Book
What You Need to Use This Book
What I Threw Away
How This Book Is Organized
Part I: Building Windows ApplicationsPart II: Building Web ApplicationsPart III: Working with Visual Basic 2005
Conventions Used in This Book
Using Code Examples
I'd Like to Hear from You

Comments and Questions
Safari Enabled
Acknowledgments
I. Building Windows Applications
1. Design and First Forms
1.1. The Requirements
1.2. Getting Started
1.2.1. Rearranging Windows1.2.2. Renaming and Sizing the Form1.2.3. MinimumSize and MaximumSize1.2.4. Using Picture Boxes, Panels, and Labels1.2.5. Adding Group Boxes, Buttons, and Text Boxes1.2.5.1. Aligning controls1.2.5.2. Copying and moving controls1.2.6. Events1.2.7. Creating Event Handlers1.2.8. Default Event Handler1.2.9. Event-Handler Parameters1.2.10. Sharing Event Handlers1.2.11. Differentiating Which Button Was Pressed
1.3. Creating the Customer Detail Page
1.3.1. Adding a Menu1.3.2. Hooking Up the Second Form to the First1.3.3. Adding Tab Controls1.3.4. Adding Tabs to the TabControl
1.4. Summary
2. Data Access
2.1. Adding Data to the Customer Page2.1.1. Create a Data Connection2.1.2. Create a Data Set Declaratively2.1.3. Binding Data Controls with Drag and Drop2.1.4. Querying with Parameters2.1.4.1. One row found in search2.1.5. Finding More Than One Match
2.2. Using the Details View to Create the Detail Form
2.2.1. Adding New Tables2.2.2. Create a Details View Declaratively2.2.3. Declare Master/Detail Relationship2.2.4. Feeding the Suppliers to the Suppliers Page2.2.5. Factor Out Common Code2.2.6. Updating Data
2.3. Modify the Display with Events
3. Cool Controls
3.1. Adding a Menu and Toolbar3.1.1. Rename All the Menu Choices3.1.2. Other Cool Controls
3.2. Displaying Web Documents
3.2.1. Setting Web Browser Event Handlers3.2.2. Adding an Auto-Complete Text Box to Navigate URLs3.2.3. Displaying XML documents3.2.4. Using Drag and Drop
3.3. Masked Text Box
3.3.1. Hooking the Masked Control to the Data
3.4. Printing a Document
3.4.1. Handling the Print Click Event
3.5. Copying Files Using Tree Views
3.5.1. Populating the TreeView Controls3.5.1.1. TreeNode objects3.5.2. Displaying the Directories3.5.2.1. Recursing through the subdirectories3.5.2.2. Getting the files in the directory3.5.3. Handling TreeView Events3.5.3.1. Clicking the source TreeView3.5.3.2. Expanding a directory3.5.3.3. Clicking the target TreeView3.5.3.4. Handling the Clear button event3.5.4. Implementing the Copy Button Event3.5.4.1. Getting the selected files3.5.5. Handling the Delete Button Event
4. Custom Controls
4.1. Custom Controls
4.2. Design
4.3. Building the Controls
4.3.1. Building the Rolodex Panel
4.4. Using the Custom Controls
4.4.1. Building the Specialized Forms4.4.2. Displaying the Rolodex, Step by Step4.4.3. Clicking on an Entry4.4.4. Walking Through a Letter Button Click
5. GDI+ and Drawing
5.1. The Graphics Class5.1.1.5.1.1.1. Coordinates5.1.1.2. Transforms introduced
5.2. Implementing the Control
5.2.1.5.2.1.1. The StringDraw class5.2.1.2. The LtrDraw class5.2.1.3. The DrawString.DrawTheString() method5.2.1.4. Drawing the clock face5.2.1.5. Drawing the date5.2.2. Adding the Control to a Form5.2.2.1. Drawing the numbers5.2.2.2. Drawing the time5.2.2.3. Drawing the hands5.2.2.4. RotateTransform ()5.2.2.5. FillEllipse5.2.2.6. Refactor5.2.3. Switching from 12-Hour to 24-Hour Display
6. Mice and Fonts
6.1. Click the Mouse6.1.1. Using MouseDown, MouseUp, and MouseMove6.1.2. Using MouseEnter and MouseLeave6.1.3. Rebuild and Run the Application6.1.4. Setting Fonts
7. Legacy COM Controls
7.1. Importing ActiveX Controls7.1.1. Creating an ActiveX Control7.1.2. Importing a Control in .NET7.1.2.1. Importing a control
7.2. Importing COM Components
7.2.1. Integrating the COM DLL into .NET7.2.2. Importing the Type Library7.2.3. Creating a Test Program7.2.4. Late Binding
II. Building Web Applications
8. Web Application, Design, and First Forms
8.1. Understanding Web Forms8.1.1. Web Form Events8.1.2. Event Model8.1.3. ASP.NET Events8.1.4. Application and Session Events8.1.5. Events in Visual Studio .NET8.1.6. Multiple Controls to One Event Handler8.1.7. Postback Versus Non-Postback Events8.1.8. State
8.2. Getting Started
8.2.1. Code-Behind Files8.2.2. Put a Toe in the Water
8.3. Adding Controls
8.3.1. Server Controls8.3.2. Adding Controls and Events8.3.3. Adding the Shipper Page
8.4. State
8.4.1. View State8.4.2. State Bag8.4.3. Session State8.4.4. Session-State Configuration8.4.5. Session-Scoped Application Objects
8.5. Lifecycle
8.6. Directives
8.6.1. Application Directive8.6.2. Assembly Directive
9. Validation Controls
9.1. The RequiredFieldValidator
9.2. Client-Side Evaluation
9.3. The Summary Validator
9.4. The Compare Validator
9.4.1. Checking the Input Type9.4.2. Comparing to Another Control
9.5. Range Checking
9.6. Regular Expressions
9.7. Custom Validation
9.8. Validation Groups
10. Master Pages and Navigation
10.1. Creating Master Pages
10.2. Navigation
10.2.1. Getting Started with Site Navigation10.2.2. Setting Up the Pages10.2.3. Customizing the Look and Feel10.2.3.1. Limiting the number of links shown10.2.4. Populating on Demand
11. Web Data Access
11.1. Getting Data from a Database11.1.1. Create a Data Connection11.1.2. Data Source Controls11.1.3. Binding Data Controls with Drag and Drop11.1.4. Adding Features to the Grid11.1.5. Adding Insert, Update, and Delete Statements
11.2. Multiuser Updates
11.2.1. Lock the Records11.2.2. Update Only the Records You Change11.2.3. Compare Original Against New11.2.4. Handle the Errors11.2.5. Displaying and Updating the Grid11.2.6. Take It for a Spin11.2.7. Tracking the Update with Events11.2.8. Modifying the Grid Based on Events11.2.9. Using IntelliSense to Help You Identify the Type to Declare11.2.10. Passing Parameters to the Select Query
11.3. The DataList Control
11.3.1. Organizing the Flow of the DataList11.3.2. Editing Items in List Controls11.3.3. Deleting Items from a List Control11.3.4. Trying It Out11.3.5. Examining One Record at a Time: The DetailsView11.3.6. Examining Single Records with FormView (Master/Detail)11.3.7. Inserting New Records11.3.8. Updating the Drop-Down List
12. Personalization
12.1. Implementing Forms-Based Security12.1.1. Creating the User Through IIS12.1.2. Creating Accounts Programatically12.1.3. Creating the Welcome Page12.1.4. Create a Login Page12.1.5. Adding a Password Reminder
12.2. Add Roles to ASP.NET Accounts
12.2.1. Create a New Application with Roles12.2.2. Restricting Access to Pages Based on Roles12.2.3. Restricting Access to a Set of Pages
12.3. Create Personalized Web Sites
12.3.1. Recording Personalization Information12.3.1.1. Setting up profile handling12.3.2. Exploring the Profile Tables
12.4. Personalize with Complex Types
12.5. Anonymous Personalization
12.5.1. Migrating the Anonymous Data to the Actual User's Record
12.6. Themes and Skins
12.6.1. Create the Test Site12.6.2. Organize Site Themes and Skins12.6.3. Enable Themes and Skins12.6.4. Specify Themes for Your Page12.6.5. Using Named Skins
12.7. Web Parts
12.7.1. Create a New Site12.7.2. Web Parts Architecture12.7.3. Creating Zones12.7.4. Adding Controls to Zones12.7.5. Minimizing and Restoring
12.8. Enabling Editing and Layout Changes
12.8.1. Creating a User Control to Enable Changing Page Layout12.8.1.1. Moving a Part12.8.1.2. Editing a Part12.8.2. Adding Parts from a Catalog
13. Custom Controls
13.1. User Controls13.1.1. Adding Code to User Controls13.1.1.1. Control properties
13.2. Custom Controls
13.2.1. Creating a Web Control Library13.2.2. Web Custom Control 113.2.3. Properties13.2.4. The Render Method13.2.5. Rendering Text with Tags13.2.6. Maintaining State13.2.7. Creating Derived Controls13.2.8. Adding the Derived Custom Control to the ASPX Page13.2.9. Creating Composite Controls13.2.10. Modifying the CountedButton Derived Control13.2.11. Creating the BookCounter Control13.2.12. INamingContainer13.2.13. Creating the BookInquiryList Composite Control13.2.14. Declaring the BookCounters in the .aspx File13.2.15. Implementing BookInquiryList.Render13.2.16. Assignment of Responsibilities
14. Web Services
14.1. Platform Independence
14.2. How Web Services Work
14.3. Creating a Web Service
14.4. WebMethod Properties
14.4.1. The BufferResponse Property14.4.2. The CacheDuration Property14.4.3. The Description Property14.4.4. The EnableSession Property14.4.5. The TransactionOption Property14.4.6. The MessageName Property
14.5. Testing Your Web Service
14.5.1. Examining the WSDL
14.6. Writing the Client
III. Programming with Visual Basic 2005
15. Visual Studio 2005
15.1. Start Page
15.2. Projects and Solutions
15.2.1. Templates15.2.2. Web Sites15.2.3. Solutions
15.3. The Integrated Development Environment (IDE )
15.3.1. Layout15.3.2. Creating a Web Application15.3.3. Creating a Windows Application15.3.4. Menus and Toolbars15.3.5. File Menu15.3.5.1. New15.3.6. Edit Menu15.3.6.1. Cycle Clipboard Ring Clipboard Ring15.3.6.2. Find and Replace → Quick Find (Ctrl-F) / Quick Replace (Ctrl-H)15.3.6.3. Find and Replace → Find in Files (Ctrl-Shift-F)15.3.6.4. Find and Replace → Replace in Files (Ctrl-Shift-H)15.3.6.5. Find and Replace → Find Symbol (Alt-F12)15.3.6.6. Go To...15.3.6.7. Find All References15.3.6.8. Insert File As Text...15.3.6.9. Advanced15.3.6.10. Incremental search (Ctrl-I)15.3.6.11. Bookmarks15.3.6.12. Outlining15.3.6.13. IntelliSense15.3.7. View Menu15.3.7.1. Class View (Ctrl-Shift-C)15.3.7.2. Code Definition Window (Ctrl-W, D)15.3.7.3. Error List (Ctrl-W, Ctrl-E)15.3.7.4. Output (Ctrl-Alt-O)15.3.7.5. Properties Windows (F4)15.3.7.6. Solution Explorer (Ctrl-Alt-L)15.3.7.7. Task List (Ctrl-W, Ctrl-T)15.3.7.8. Toolbox (Ctrl-Alt-X)15.3.7.9. Other Windows15.3.8. Refactor Menu15.3.9. Build Menu15.3.10. Debug Menu15.3.11. Data Menu15.3.12. Format Menu15.3.13. Tools Menu15.3.13.1. Connect to Device ...15.3.13.2. Connect to Database ...15.3.13.3. Code Snippets Manager (Ctrl-K, Ctrl-B)15.3.13.4. Choose Toolbox Items...15.3.13.5. Macros15.3.13.6. External Tools...15.3.13.7. Performance Tools15.3.13.8. Import and Export Settings...15.3.13.9. Customize ...15.3.13.10. Options...15.3.14. Window Menu15.3.15. Help Menu15.3.15.1. Dynamic Help (Ctrl-Alt-F4)15.3.15.2. Contents ...(Ctrl-Alt-F1) / Index ...(Ctrl-Alt-F2) / Search ...(Ctrl-Alt-F3)15.3.15.3. Index Results... (Shift-Alt-F2)15.3.15.4. Check for Updates
15.4. Building and Running
16. Visual Basic 2005 Fundamentals
16.1. Types16.1.1. Numeric Types16.1.1.1. Nonnumeric types16.1.1.2. Understanding types
16.2. Variables
16.2.1.16.2.1.1. Type characters16.2.1.2. Initializing variables16.2.2. Default Values16.2.3. Constants16.2.3.1. Literal constants16.2.3.2. Symbolic constants16.2.4. Enumerations16.2.5. Casting16.2.6. Strings
16.3. Whitespace
16.4. Statements
16.5. Branching
16.5.1. Unconditional Branching Statements16.5.2. Conditional Branching Statements16.5.2.1. If statements16.5.2.2. If...Else statements16.5.3. Select Case Statements16.5.3.1. Checking for a range of values
16.6. Iteration Statements
16.6.1. The Do Loop16.6.1.1. Do While16.6.1.2. Do Until16.6.1.3. Breaking out of a Do loop16.6.2. While Loops16.6.3. The For loop
16.7. Operators
16.7.1. Arithmetic Operators16.7.1.1. The modulus operator (Mod) modulus operator (Mod)16.7.1.2. The exponentiation (^) operator16.7.2. Relational Operators16.7.3. Use of Logical Operators with Conditionals16.7.4. Operator Precedence
17. Using Collections and Generics
17.1. Arrays17.1.1. Declaring Arrays17.1.2. Understanding Default Values17.1.3. Accessing Array Elements17.1.4. Initializing Array Elements17.1.5. Multidimensional Arrays17.1.5.1. Rectangular arrays17.1.6. Jagged Arrays
17.2. Generics
17.2.1. Generic List Class17.2.2. Implementing IComparable
17.3. Queues
17.4. Stacks
17.5. Dictionaries
17.5.1. IDictionary IDictionary
18. Object-Oriented Visual Basic 2005
18.1. Defining Classes
18.2. Instantiating Objects
18.3. Scope
18.4. The Heap
18.5. Access Modifiers
18.6. Method Arguments
18.7. Constructors
18.8. Initializers
18.9. Copy Constructors
18.9.1. The Me Keyword
18.10. Using Shared Members
18.11. Destroying Objects
18.12. Overloading Methods and Constructors
18.12.1. Overloaded Methods—Different Signatures
18.13. Encapsulating Data with Properties
18.13.1. The Get Accessor18.13.2. The Set Accessor
18.14. Specialization and Generalization
18.15. Inheritance
18.15.1. Implementing Inheritance18.15.2. Calling Base Class Constructors
18.16. Polymorphism
18.16.1. Creating Polymorphic Types18.16.2. Creating Polymorphic Methods
18.17. Abstract Classes
18.17.1. NotInheritable Class
18.18. The Root of All Classes: Object
18.19. Boxing and Unboxing Types
18.19.1. Boxing Is Implicit18.19.2. Unboxing Must Be Explicit
18.20. Interfaces
18.21. Interfaces Versus Abstract Base Classes
18.22. Defining an Interface
18.23. Implementing an Interface
18.23.1. Implementing More Than One Interface18.23.2. Casting to an Interface
About the Author
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Content preview from Programming Visual Basic 2005

Multiuser Updates

You may have noticed that I did not ask you to turn on support for optimistic concurrency. You are now going to go back and check this box, but before you do, let's take a moment to put optimistic concurrency in context.

As things stand, you read data from the database and into your data grid through the SqlDataSource. You have now added the ability to update (or delete) that information. Of course, more than one person may be interacting with the database at the same time (few web applications support only single-user access).

You can easily imagine that this could cause tremendous problems of data corruption. Imagine, for example, that two people download a record:

    Company: Liberty Associates, Inc. / City: Boston / Contact Name: Jesse Liberty

The first editor changes the City from Boston to New York. The second person changes the Contact Name from Jesse Liberty to Milo Liberty. Now things get interesting. The first editor writes back the data record, and the database has:

    Company: Liberty Associates, Inc. / City: New York / Contact Name: Jesse Liberty

A moment later, the second person updates the database and the database now has:

    Company: Liberty Associates, Inc. / City: Boston / Contact Name: Milo Liberty

These earlier updated values are overwritten and lost. The technical term for this is bad.

To prevent this kind of problem, you may use any of the following strategies:

Lock the records: When one user is working with a record, other users can read the records but ...

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Programming Visual Basic 2005

by Jesse Liberty

Multiuser Updates

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More than 5,000 organizations count on O’Reilly

Julian F.

Addison B.

Amir M.

Mark W.

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Programming Visual Basic 2008

Visual Basic 2005 Jumpstart

Visual Basic 2005: A Developer's Notebook

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Publisher Resources

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.