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RAD Studio VCL Reference
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TCustomClientDataSet.DataRequest Method
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RAD Studio VCL Reference
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Generates an OnDataRequest event on the associated provider
function DataRequest(Data: OleVariant): OleVariant; virtual;
virtual __fastcall OleVariant DataRequest(OleVariant Data);
Call DataRequest to invoke an OnDataRequest event handler. This method is provided to allow application developers to customize the communication between a client application and an external provider component.
There is no predefined meaning for the Input parameter or the returned value. Instead, the Data parameter provides the input parameter to an OnDataRequest event handler and DataRequest returns the value that that event handler returns.
Communicating with Providers Using Custom Events
Communicating with the Client Dataset
Responding to Client-generated Events
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Description