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TCustomProvider.OnDataRequest Event
TCustomProvider Class | TCustomProvider Members | Provider Namespace | Description | See Also
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Occurs when a provider calls its DataRequest method.

Pascal
property OnDataRequest: TDataRequestEvent;
C++
__property TDataRequestEvent OnDataRequest;
Description

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.
 

 

See Also

DataRequest 

IAppServer 

Communicating with Providers Using Custom Events 

Communicating with the Client Dataset 

Responding to Client-generated Events

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