Data.SqlExpr.TCustomSQLDataSet.PSInTransaction

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Delphi

function PSInTransaction: Boolean; override;

C++

virtual bool __fastcall PSInTransaction(void);

Properties

Type Visibility Source Unit Parent
function protected
Data.SqlExpr.pas
Data.SqlExpr.hpp
Data.SqlExpr TCustomSQLDataSet

Description

Indicates whether actions against the dataset occur in the context of a transaction.

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

Indicates whether actions against the dataset occur in the context of a transaction.

The provider component applies updates within a transaction, if possible. To do so, it first checks whether a transaction is already underway, and if not, generates one using PSStartTransaction. To determine whether a transaction is already underway, the provider calls PSInTransaction.

PSInTransaction returns True if there is a transaction underway, and False otherwise.

This method is an implementation of the IProviderSupport.PSInTransaction method and, by default, returns False, because TDataSet does not implement a provider by default. To use it, every TDataSet descendant must override it in its specific way.

See Also