共用方式為

RFX_Single

  • 發行項

 

Transfers floating-point data between the field data members of a CRecordset object and the columns of a record on the data source of ODBC type SQL_REAL.

Syntax

      void RFX_Single(
   CFieldExchange* pFX,
   const char* szName,
   float& value 
);

Parameters

  • pFX
    A pointer to an object of class CFieldExchange. This object contains information to define the context for each call of the function. For more information about the operations a CFieldExchange object can specify, see the article Record Field Exchange: How RFX Works.

  • szName
    The name of a data column.

  • value
    The value stored in the indicated data member — the value to be transferred. For a transfer from recordset to data source, the value, of type float, is taken from the specified data member. For a transfer from data source to recordset, the value is stored in the specified data member.

Example

See RFX_Text.

Requirements

Header: afxdb.h

See Also

MFC Macros and Globals
RFX_Text
RFX_Bool
RFX_Long
RFX_Int
RFX_Double
RFX_Date
RFX_Byte
RFX_Binary
RFX_LongBinary
CFieldExchange::SetFieldType