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Summary
Windows are the main interface between the user and PowerBuilder applications.
Window style and the controls determine how the window looks and behaves.
Establish the style of window by choosing values for its properties.
There are six window types.
Controls are placed in a window.
Sum
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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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Building a Window Interface to Display Data
What Is a DataWindow Control?
DataWindow Properties and Methods
Opening a Sheet in an MDI Frame
Data stored in database
Data can be processed on any of:
Database
Middle tier
ClientTo associate a DataWindow object with a DataWindow control:
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Summary
An event is an action initiated by the user or the system.
An object is any item that combines characteristics (properties) and behaviors (methods).
Scripts describe the processing that should take place when an event occurs.
Encapsulation prevents users from seeing the internal workings
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properties with appropriate values for the desired database.
Use SQL CONNECT to establish the connection.
Each concurrent database connection requires its own transaction object.
Declare a variable of type transaction and use CREATE to build a transaction object.
Summary
Use ProfileString( ) to
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