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TDataSource.OnStateChange Event
TDataSource Class | TDataSource Members | DB Namespace | Description | See Also
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Occurs when the state of a data source component's dataset changes.

Pascal
property OnStateChange: TNotifyEvent;
C++
__property TNotifyEvent OnStateChange;
Description

Write an OnStateChange event handler to take specific actions when the State property changes for a dataset associated with a data source component. 

During the course of a normal connection to a database, a dataset's state changes frequently. For example, each time a user starts editing a field in a data-aware control the dataset's State property is changed from dsBrowse to dsEdit if the State is not already dsEdit. An OnStateChange event handler can respond to changes in state by taking actions such as disabling or enabling menu items or buttons. 

 

See Also
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