Datasnap.Provider.TDataSetProvider.OnDataRequest
Delphi
property OnDataRequest;
C++
__property OnDataRequest;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| event | published | Datasnap.Provider.pas Datasnap.Provider.hpp |
Datasnap.Provider | TDataSetProvider |
Description
Occurs when a provider calls its DataRequest method.
Datasnap.Provider.TDataSetProvider.OnDataRequest inherits from Datasnap.Provider.TCustomProvider.OnDataRequest. All content below this line refers to Datasnap.Provider.TCustomProvider.OnDataRequest.
Occurs when a provider calls its DataRequest method.
Write an OnDataRequest event handler to do custom processing of data. OnDataRequest has no built-in use. Instead, it allows developers to augment the IAppServer interface so that clients in a multi-tiered application can communicate directly with an individual provider.
If an application does not provide an OnDataRequest event handler, calls to DataRequest return NULL.
Note: To provide the same sort of custom processing on the client side, use an automation method on the connection component.
OnDataRequest is of type Datasnap.Provider.TDataRequestEvent