比方說,如果欄位名稱是 "user_number" 且其類型為 INT,程式碼可確保使用者輸入介於 1 和 100 之間的值:
REM Return a non-empty string explaining why the field's current
value is not permitted
REM Or, if it is valid, return an empty string value.
value = GetFieldValue(fieldname).Get Value()
if Not IsNumeric(value)
user_number_Validation="Field does not contain a number."
Else If (value < 1) or (value > 100) then
user_number_Validation="User number must be between 1 and 100."
end if