Datasnap.DBClient.TCustomClientDataSet.DisableConstraints
Delphi
procedure DisableConstraints;
C++
void __fastcall DisableConstraints();
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
procedure function |
public | Datasnap.DBClient.pas Datasnap.DBClient.hpp |
Datasnap.DBClient | TCustomClientDataSet |
Description
Disables the enforcement of constraints.
Call DisableConstraints to prevent, on a temporary basis, enforcement of constraints that have been assigned to the dataset or its fields. For example, when an application iterates through a client dataset, it may improve performance to disable constraints temporarily.
Note: Calling DisableConstraints increments a reference count. As long as this reference count is greater than zero, constraints are disabled for the dataset. To prevent accidental disabling of constraints, always group a call to DisableConstraints with a call to EnableConstraints.