RAD Studio VCL Reference
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Implements IWebGetFieldValues' HasValue method.
function ImplHasValue(const Value: Variant): Boolean; override;
virtual __fastcall Boolean ImplHasValue(const Variant Value);
ImplHasValue overrides TBaseAdapterMultiValueField's ImplHasValue method. If the OnHasValue event is not nil (Delphi) or NULL (C++), it will be called for the result of ImplHasValue. Otherwise, ImplHasValue will loop through the values of the adapter field, looking for a matching value.
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