public void RunProgram()
{
MonthYear d1 = new MonthYear() { Month = 1, Year = 2012 };
Console.WriteLine(ValidRelativeMonthYear(d1, 0, MonthYearUnit.Month, RangeBoundaryType.Inclusive));
Console.WriteLine(ValidRelativeMonthYear(d1, 0, MonthYearUnit.Month, RangeBoundaryType.Exclusive));
Console.WriteLine(ValidRelativeMonthYear(d1, 0, MonthYearUnit.Year, RangeBoundaryType.Inclusive));
Console.WriteLine(ValidRelativeMonthYear(d1, 0, MonthYearUnit.Year, RangeBoundaryType.Exclusive));
Console.WriteLine(ValidRelativeMonthYear(d1, 2, MonthYearUnit.Month, RangeBoundaryType.Inclusive,
3, MonthYearUnit.Year, RangeBoundaryType.Exclusive));
}
internal static bool ValidRelativeMonthYear(MonthYear input,
int lowerBound, MonthYearUnit lowerUnit, RangeBoundaryType lowerBoundType,
int upperBound, MonthYearUnit upperUnit, RangeBoundaryType upperBoundType)
{
DateTime now = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
DateTime lowerDate = DateTime.MinValue;
DateTime upperDate = DateTime.MaxValue;
DateTime inputDate = new DateTime(input.Year, input.Month, 1);
switch (lowerUnit)
{
case MonthYearUnit.Month:
lowerDate = now.AddMonths(lowerBound * -1);
break;
case MonthYearUnit.Year:
lowerDate = now.AddYears(lowerBound * -1);
break;
}
switch (upperUnit)
{
case MonthYearUnit.Month:
upperDate = now.AddMonths(upperBound);
break;
case MonthYearUnit.Year:
upperDate = now.AddYears(upperBound);
break;
}
//default the bound check to true - if lowerBoundType is Ignore, no test will be performed.
bool lowerBoundOk = true;
if (lowerBoundType == RangeBoundaryType.Inclusive)
{
lowerBoundOk = inputDate.CompareTo(lowerDate) >= 0;
}
else if (lowerBoundType == RangeBoundaryType.Exclusive)
{
lowerBoundOk = inputDate.CompareTo(lowerDate) > 0;
}
//default the bound check to true - if upperBoundType is Ignore, no test will be performed.
bool upperBoundOk = true;
if (upperBoundType == RangeBoundaryType.Inclusive)
{
upperBoundOk = inputDate.CompareTo(upperDate) <= 0;
}
else if (upperBoundType == RangeBoundaryType.Exclusive)
{
upperBoundOk = inputDate.CompareTo(upperDate) < 0;
}
return lowerBoundOk && upperBoundOk;
}
internal static bool ValidRelativeMonthYear(MonthYear input, int upperBound, MonthYearUnit upperUnit,
RangeBoundaryType upperBoundType)
{
return(ValidRelativeMonthYear(input, 0, MonthYearUnit.Year, RangeBoundaryType.Ignore, upperBound, upperUnit, upperBoundType));
}
internal static bool ValidRelativeMonthYear(MonthYear input, int upperBound, MonthYearUnit upperUnit,
RangeBoundaryType upperBoundType)
{
return ValidRelativeMonthYear(input, 0, MonthYearUnit.Year, RangeBoundaryType.Ignore, upperBound, upperUnit, upperBoundType);
}