Brian Dunning's FileMaker Custom Functions

NextDateRange ( StartDate ; TimePeriod ; WholePeriod ; FindPrevious )

Generate Date Ranges for Creating Daily, Weekly, Monthly, or Yearly Reports

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Kyle Williams   Kyle Williams - Show more from this author
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  Sample input:
NextDateRange ( "6/29/2019" ; "m" ; 0 ; 1 )
  Sample output:
5/30/2019
6/29/2019

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

When creating reports, date ranges can be a little challenging. Using this custom function, I am able to easily generate the start and end dates for the next line item in the report. This can be set up to find the first and last dates of every month by entering a 1 for "WholePeriod" otherwise it will use the current date. Depending on the direction of the report you can get the range for the next period or the previous period.

 

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