RAD Studio |  |

Adding the Data Link

The connection between a control and a database is handled by a class called a data link. The data link class that connects a control with a single field in a database is TFieldDataLink. There are also data links for entire tables.

A data-aware control owns its data link class. That is, the control has the responsibility for constructing and destroying the data link. For details on management of owned classes, see Creating a graphic control

Establishing a data link as an owned class requires these three steps:

1. Declaring the class field.
2. Declaring the access properties.
3. Initializing the data link.

Copyright(C) 2009 Embarcadero Technologies, Inc. All Rights Reserved.
What do you think about this topic? Send feedback!