public DBCurrency(DBField field) { Field = field; }
public DBNumber(DBField field) { Field = field; }
public DBMemo(DBField field) { Field = field; }
public DBString(DBField field) { Field = field; }
public DBBoolean(DBField field) { Field = field; }
public DBInteger(DBField field) { Field = field; }
public DBDouble(DBField field) { Field = field; }
public DBDateTime(DBField field) { Field = field; }
public DBFloat(DBField field) { Field = field; }