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Creating a DataWindow Object
1. Choose a presentation style
2. Choose a datasource
3. Describe the result set
4. Design the format for data presentation and validation
5. Use simultaneous preview during design, if desired
Data sources
Relational
Quick Select
SQL Select
Query
Stored Proced
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Transition to the Client/Server Environment
The traditional environment
Mainframe or minicomputer environment.
All the processes run on a single CPU.
A multitasking operating system
Task switching
Prioritization
Data communications
Connectivity tasks
The Client/Server Environment
Client/se
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well-designed nonvisual user object hierarchy is essential for building an object-oriented application. 1. What Is PowerBuilder?
2. Graphical User Interface
3. Event-Driven Programming
4. Object-Oriented Programming
5. Encapsulation
6. Relational Databases
7. PowerBuilder Env
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Summary
Objects, events, and properties are key to developing applications with PowerBuilder.
Properties are characteristics of an object.
Events permit the object to recognize and respond to actions.
You can build application objects, DataWindow objects, menus, structures, user objects, and win
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Window painter.
Save a new window by specifying a name and a library. 1. What is a Window?
2. Types of Windows
3. Window Style and Properties What is a Control?
4. Control / Window Relationship
5. Control Properties
6. Input Focus
7. Setting the Tab Sequence
8. Saving a W
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