Data.SqlExpr.TCustomSQLDataSet.BeforeOpen

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[–] Properties Type: event Visibility: published Source:

Data.SqlExpr.pas

Data.SqlExpr.hpp

Unit: Data.SqlExpr Parent: TCustomSQLDataSet

Delphi

property BeforeOpen;

C++

__property BeforeOpen;

Description

Occurs before an application executes a request to open a dataset.

Data.SqlExpr.TCustomSQLDataSet.BeforeOpen inherits from Data.DB.TDataSet.BeforeOpen. All content below this line refers to Data.DB.TDataSet.BeforeOpen.

Occurs before an application executes a request to open a dataset.

Write a BeforeOpen event handler to take specific action before an application opens a dataset for viewing or editing. BeforeOpen is triggered when an application sets the Active property to true for a dataset or an application calls Open.

BeforeOpen is an event handler of type Data.DB.TDataSetNotifyEvent.

See Also

• Data.DB.TDataSetNotifyEvent

• Active

• AfterOpen

• Open

• Opening and Closing Datasets