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   ► KB ► To/From Guides ► Corel Paradox  Print This     

Record Movement (Corel Paradox and Java Cross Reference Guide)

By Mike Prestwood

Corel Paradox versus Java: A side by side comparison between Corel Paradox and Java.

 
Database
 

This category documents connecting and using data including database commands, and common technologies used.

Record Movement

 [Other Languages] 

Languages Focus

Top, bottom, next, and previous.

Corel Paradox:   home, end, nextRecord

ObjectPAL uses home(), end(), nextRecord(), priorRecord() to move a database cursor (works with either a TCursor or UIObject).

TCursor.nextRecord()

These commands send a message to the object. Specifically, they send an action constant using the action command. The above snippet is equivalent to:

TCursor.action(DataNextRecord)

It is handy to  with familiar with action constants because not all action constants have an ObjectPAL equivalent comment.

Syntax Example:

The following snippet uses the active keyword to move to the second to last record of the table attached to the UIObject that currently has focus:

active.end()
active.priorRecord()

You can also use the self keyword to refer to the UIObject your code is attached to.
[Not specified yet. Coming...]












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