4 ms·

how about hyphen -

• tatami 8y ago
  Which is not an Integer and the whole view crashes after the ConversionError. You know it
  • saagarjha 8y ago
    My high school system used to convert those to zeroes, just FYI. Anything that was nonnumeric and not a fixed set of "aliases" (for example, "pass" might mean 100% if the teacher set it up that way) became a zero.
• nailer 8y ago
  How about using an integer where an integer is needed and false where no grade has been produced, with the teacher and student UI showing 'Not yet graded [x]' rather than using magic numbers?