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FileMaker Pro Custom Functions

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array.cellValueByColNum ( array ; rowName ; column ; delimiter )

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Average rating: 3.7 (14 votes)
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Tim Anderson, Tim Anderson Group
http://www.timanderson.co.uk

A function to return the column value from an array by specifying the row name.

Sample Input:

array.value ( array ; "jelly" ; 2 ; "§" )
where array is
row1§40§200
row2§200§40
jelly§very wobbly§raspberry

Sample Output:

"very wobbly"

/* Name: array.cellValueByColNum History: Created by Tim Anderson, Tim Anderson Group www.timanderson.co.uk Creation Date: 5 January 2009 Modified: 6 January 2009 - now treats the row names as column 0 and name change to take account of enhanced version array.cellValueByColTitle Purpose: A function to return the column value from an array by specifying the row name. Row names must be unique or only the first occurrance will be returned. Parameters: array rowName column delimiter Example: array.cellValueByColNum ( array ; "jelly" ; 2 ; "§" ) gives "very wobbly" (no quotes) where array is row1§40§200 row2§200§40 jelly§very wobbly§raspberry Requires Other Custom Functions: None Other Notes: Have included the option to specify the delimiter for most flexible use Options: None */ Let([_rname="¶" & rowName & "§"; _notHere=PatternCount(array;_rname)=0; _string=Right("¶" & array;Length(array)-Position("¶" & array;_rname;1;1)); _row=GetValue(_string;1)]; Choose(_notHere;GetValue(Substitute(_row;delimiter;"¶");column+1);"") )
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:

Purpose:
A function to return the column value from an array by specifying the row name. Row names must be unique or only the first occurrance will be returned.

Parameters:
array
rowName
column
delimiter

Example:
array.value ( array ; "jelly" ; 2 ; "§" ) gives "very wobbly" (no quotes) where array is
row1§40§200
row2§200§40
jelly§very wobbly§raspberry

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:

A minor change is needed on the first line of the 'code' to take into account the option to specify a delimiter:

Let([_rname="¶" & rowName & "§";

should be changed to

Let([_rname="¶" & rowName & delimiter;

Matt Lygo, UK
October 05, 2011 3:26am

Thanks for that Matt, as you will have guessed I initially used the § as a delimiter before deciding that it should be user definable

Tim Anderson, Larbert
October 05, 2011 3:40am

One more minor change is necessary I think...

Currently if the 'rowName' supplied is the first row of the array the function returns an empty result. E.G in the example above, array.value (array ; "row1"; 2; "§") gives nothing when you would expect to receive "200".

The solution appears to be to either supply the array with a carriage return at the beginning, or to amend the second line of the custom function as follows:

Original -
_notHere=PatternCount(array;_rname)=0;

Changed to -
_notHere=PatternCount("¶" & array;_rname)=0;

That seems to work for me, but I haven't tested thoroughly...

Matt Lygo, UK
October 11, 2011 2:47am

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

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