Remarks
ClassWizard and AppWizard insert specially formatted comment delimiters in your source code files to mark the places in your files that ClassWizard can write to. AFX_FIELD is used to mark the beginning and end of member variable declarations in your header file (.H) used for database record field exchange (RFX):
//{{AFX_FIELD(classname)
...
//}}AFX_FIELD
For more information, see AFX_FIELD_MAP and AFX_FIELD_INIT.