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RAD Studio VCL Reference
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TDataSourceLink.ActiveChanged Method
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RAD Studio VCL Reference
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Informs the TDBLookupControl of changes in the Active property of its DataSource.
procedure ActiveChanged; override;
virtual __fastcall ActiveChanged();
Applications cannot call the ActiveChanged procedure directly. Changes in the Active property trigger this procedure. When the Active property becomes true, ActiveChanged causes the TDBLookupControl object to re-acquire its DataField property. This ensures that the lookup control is working with the correct field component.
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