API:Datasnap.Xmlxform.TXMLTransformProvider.OnDataRequest
| [–] Properties | |
|---|---|
| Type: event | |
| Visibility: published | |
| Source: Datasnap.Xmlxform.pas Datasnap.Xmlxform.hpp
| |
| Unit: Datasnap.Xmlxform | |
| Parent: TXMLTransformProvider | |
Delphi
property OnDataRequest;
C++
__property OnDataRequest;
Description
Occurs when a provider calls its DataRequest method.
Datasnap.Xmlxform.TXMLTransformProvider.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