Data.Win.ADODB.TCustomADODataSet.GetFieldData
Delphi
function GetFieldData(Field: TField; var Buffer: TValueBuffer): Boolean; overload; override;
function GetFieldData(Field: TField; var Buffer: TValueBuffer; NativeFormat: Boolean): Boolean; overload; override;
function GetFieldData(FieldNo: Integer; var Buffer: TValueBuffer): Boolean; overload; override;
function GetFieldData(Field: TField; Buffer: Pointer): Boolean; overload; override; deprecated 'Use overloaded method instead';
function GetFieldData(Field: TField; Buffer: Pointer; NativeFormat: Boolean): Boolean; overload; override; deprecated 'Use overloaded method instead';
function GetFieldData(FieldNo: Integer; Buffer: Pointer): Boolean; overload; override; deprecated 'Use overloaded method instead';
C++
virtual bool __fastcall GetFieldData(Data::Db::TField* Field, System::DynamicArray<System::Byte> &Buffer)/* overload */;
virtual bool __fastcall GetFieldData(Data::Db::TField* Field, System::DynamicArray<System::Byte> &Buffer, bool NativeFormat)/* overload */;
virtual bool __fastcall GetFieldData(int FieldNo, System::DynamicArray<System::Byte> &Buffer)/* overload */;
virtual bool __fastcall GetFieldData _DEPRECATED_ATTRIBUTE1("Use overloaded method instead") (Data::Db::TField* Field, void * Buffer)/* overload */;
virtual bool __fastcall GetFieldData _DEPRECATED_ATTRIBUTE1("Use overloaded method instead") (Data::Db::TField* Field, void * Buffer, bool NativeFormat)/* overload */;
virtual bool __fastcall GetFieldData _DEPRECATED_ATTRIBUTE1("Use overloaded method instead") (int FieldNo, void * Buffer)/* overload */;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | Data.Win.ADODB.pas Data.Win.ADODB.hpp |
Data.Win.ADODB | TCustomADODataSet |
Description
Retrieves the current value of a field into a buffer.
Most applications do not need to call GetFieldData. TField objects call this method to implement their GetData method.
The Field or FieldNo parameter indicates the field whose data should be fetched. Field specifies the component itself, while FieldNo indicates its field number.
Buffer is a memory buffer with sufficient space to accept the value of the field as it exists in the database (unformatted and untranslated). GetFieldData returns a value that indicates whether the data was successfully fetched.
GetFieldData returns a boolean value indicating whether the operation was successful.