/// <summary>
/// Retrieves the financial period with the same <see cref="FinPeriod.PeriodNbr"/>
/// as the one specified, but residing in the previous financial year.
/// If no such period exists, returns <c>null</c>.
/// </summary>
public string GetSamePeriodInPreviousYear(string financialPeriodID)
{
if (financialPeriodID == null)
{
return(null);
}
PXGraph graph = PXGraph.CreateInstance <FiscalPeriodMaint>();
try
{
string resultingPeriodID = FinPeriodIDAttribute.GetSamePeriodInPreviousYear(
graph,
financialPeriodID);
return(FinPeriodIDFormattingAttribute.FormatForDisplay(resultingPeriodID));
}
catch (PXFinPeriodException)
{
return(null);
}
}