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 FileMaker Pro Custom Functions

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Get_Row_Number ( relatedkey ; key )

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  Average rating: 4.4  (34 votes)
  Discuss this Custom Function

Colin Keefe, IT Solutions Consulting, Inc
http://www.itsolutions-inc.com

Return the portal row number of a matching key in a self join relationship

Sample Input:
Get_Row_Number ( ItemsSJ::PrimaryID , PrimaryID )
Sample Output:
3


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

When using this function with a self join relationship, it will return the number of the first row in that relationship that matches the key you're searching for.

I use it when I need to determine, from the context of a child table, what portal row that child record is seen as from the context of its parent. I want to know that the child Invoice Line Item record is portal row 3 in the parent Invoice record, for example.

To work properly for this purpose, set up a new Table Occurence and create a relationship between it and your original table. For matching keys, use your parent ID foriegn key. The relationship should now show, from the context of the child table, all child records tied to that child record's parent invoice.

There's probably a more elegant way to do this. I'm just counting the paragraph marks in a returned List() left of the matching key, and adding 1.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

Colin,

Thanks much for the custom function. It was exactly what I was looking for.

Best regards,

Michele

Michele Olson, Grand Rapids, MN
July 20, 2011 1:37pm

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