Paradox 9 ObjectPAL

Training Provided by 123-CBT Computer Based Training

Lesson 1: Introduction To ObjectPAL

Opening Paradox 9
Opening A Form
Introduction To ObjectPAL
The Object Explorer Window
The Object Tree Pane
Introduction To Object Trees
The Tabbed Pane
The Appearance Tab
The Properties Tab
The Methods Tab
ObjectPAL Code
The If Structure
The VCR Control
The Back Event
The FastBack Event
The FastForward Event
The FirstRecord Event
The Forward Event
The LastRecord Event
Adding A New Record
Locating A Record
Printing The Form
Closing The Form
Running The Form
Locating Specific Records

Lesson 2: Input, Output And Validating Data Entries

Modifying Field Labels
Formatting Fields
Creating A New Format
Applying The New Date Format
Applying A Currency Format
Retrieving Information From A Database
Variable Declarations
Data Types Supported By ObjectPAL
Validating A Field
Calculating Values
Creating A New Method
Attaching Code To A Form The Closer-Is-Better Principle
Handling Key Violations
Running The Form
Locating Records
The View Dialog Box

Lesson 3: Comboboxes, Dialog Boxes and Tcursors

Opening A Form
Changing Modes Using The Menu Bar
Introduction To Comboboxes
Converting An Existing Field Into A Combobox
Changing The Frame Style
Adding A Label
Opening The Object Explorer Using Shortcut Keys
More About Comboboxes
The Open Event
Attaching A Field
Running The Form
Changing To Design Mode Using The Property Toolbar
Saving A Form
Opening A Form In Design Mode
Opening The Object Explorer Using The Menu Bar
The FormReturn Command
Attaching A Dialog Box To A Form Field
Opening The Object Explorer Using The Toolbar
Declaring A Form Object As A Variable
Checking For A Required Key
The OpenAsDialog Function
Style Constants
Adding Another Constant Using The Plus Sign
Storing A Form Return Value
Error Handling
Checking Syntax Using The Menu Bar
Errors In Design Mode
Running A Form Using The Menu Bar
Opening A Table
Declaring A TCursor Variable
Opening A Table Using A TCursor Variable
Locating A Record Using A TCursor Variable
Editing A Table Using A TCursor Variable
Running The Form
Runtime Errors
Correcting Runtime Errors
The IIF Statement
The IsBlank() Function
Checking The Corrected Form
Saving The Form

Lesson 4: Working With Menus

Turning Off The Experts
Opening An Existing Form
Opening The Object Explorer
Attaching The Code
Declaring Menu Variables
Adding Code For Pop-Up Menu
Compiling The Code
Adding Menu Actions
Creating Shortcut Keys Using ObjectPAL
Assigning An Action To A Shortcut Key
Changing The Title Of The Form
Creating A Custom Pop-Up Menu
SwitchMenu Statements
Closing A Toolbar
Testing The Custom Menu Bar
Inserting A Record Using The Custom Menu Bar
Deleting A Record Using The Custom Menu Bar
Creating A New Form Using A Shortcut Key
Testing The Custom Pop-Up Menu
Closing The Form Using The Custom Menu Bar

Lesson 5: Advanced Concepts In ObjectPAL

Declaring Query Variables
The Date ( ) Function
Setting Criteria
Executing A Query
Example Elements
Procedures And Parameters
Creating A UIObject
Calling The Color Method
The TableFrame Tool
The TableName Property
System Procedures
Using TextStreams
Creating A Text File

Paradox 9 ObjectPAL --

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