TAstaProvider.BeforeUpdate
Applies to
TAstaProvider
Declaration
type
TAstaUpdateEvent = procedure(Sender: TObject; ClientSocket: TCustomWinSocket;
ExecQuery: TComponent;
OriginalValueDataSet,CurrentValueDataSet,ServerValueDatASet;CurrentValueDataSet: TDataset;
var Handled: Boolean) of object;
property BeforeUpdate: TAstaUpdateEvent;
Description
This event will fire before an update using server
side SQL and allows you to execute additional SQL statements using the
scratch ExecQuery that is passed through by this event. The CurrentValueDataSet will contain the current
values from the client dataset, the originalValueDataSet will contain the original values before the update
and if the CompareCurrentServerValuesOnUpdates
is set to true the ServerValueDataSet will contain freshly populate data from the server. If the var Handled:Boolean
is set to true the AstaProvider will not generate any SQL. Use the passed in ExecQuery by typecasting
it to fire any Update SQL in this event.
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