public int?Map(GradingStyleEnum styleEnum, int?value)
{
if (!value.HasValue)
{
return(null);
}
if (value < 0)
{
throw new ChalkableException(string.Format(ChlkResources.ERR_GRADING_STYLE_INVALID_GRADE_VALUE, value));
}
if (styleEnum == GradingStyleEnum.Numeric100)
{
if (value.Value > 100)
{
throw new ChalkableException(string.Format(ChlkResources.ERR_GRADING_STYLE_INVALID_GRADE_VALUE, value));
}
return(value);
}
IList <int> mapping = mappers[styleEnum];
int i;
for (i = 0; i < mapping.Count; i++)
{
if (value <= mapping[i])
{
break;
}
}
if (i == mapping.Count)
{
if (value < 0)
{
throw new ChalkableException(string.Format(ChlkResources.ERR_GRADING_STYLE_INVALID_GRADE_VALUE, value));
}
}
return(i);
}
public int?MapBack(GradingStyleEnum styleEnum, int?styledValue)
{
if (!styledValue.HasValue)
{
return(null);
}
if (styledValue < 0)
{
throw new ChalkableException(string.Format(ChlkResources.ERR_GRADING_STYLE_INVALID_GRADE_VALUE, styledValue));
}
if (styleEnum == GradingStyleEnum.Numeric100)
{
return(styledValue);
}
IList <int> mapping = mappers[styleEnum];
if (styledValue.Value >= mapping.Count)
{
throw new ChalkableException(string.Format(ChlkResources.ERR_GRADING_STYLE_INVALID_GRADE_VALUE, styledValue));
}
return(mapping[styledValue.Value]);
}
public IList <int> GetValuesByStyle(GradingStyleEnum styleEnum)
{
return(mappers[styleEnum]);
}