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FileMaker Pro Custom Functions

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VisiblePortalRows ( objName ; portalName )

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Average rating: 4.8 (4 votes)
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Fabrice Nordmann, -
-

Returns a list of visible row numbers of a portal

Sample Input:

VisiblePortalRows ( aField ; aPortal )

Sample Output:

4¶5¶6¶7¶8 if user scrolled down to row number 4 and the portal is displaying 5 rows.

/* VisiblePortalRows ( objName ; portalName ) Fabrice Nordmann v.1, apr 2007 fabrice@bh-a.com objName : the name of an object within the portal row portalName : the name of the portal layout object returns the visible row numbers as a list. Based on a crazy Agnès Barouh idea and an insane solution by Alexandre Vial */ Let([ $$cf_counter = Case ( $$cf_counter < 1 ; 1 ; $$cf_counter + 1 ) ; $portalTop = GetLayoutObjectAttribute ( portalName ; "top" ) + 1 ; $portalBottom = GetLayoutObjectAttribute ( portalName ; "bottom" ) -1 ]; Case ( $$cf_counter = 1 ; Let ([ $$cf_firstRow = "" ; $$cf_lastRow = "" ]; "" )) & Case ( IsEmpty ( $$cf_lastRow ) ; Case ( GetAsNumber ( GetLayoutObjectAttribute ( objName ; "top" ; 1 ; $$cf_counter )) >= $portalbottom ; Let ( $$cf_lastRow = $$cf_counter - 1 ; "" ) ; GetAsNumber ( GetLayoutObjectAttribute ( objName ; "bottom" ; 1 ; $$cf_counter )) >= $portalTop ; Let ( $$cf_firstRow = Case ( not IsEmpty ( $$cf_firstRow ) ; $$cf_firstRow & ¶ ) & $$cf_counter ; "" ) ) & VisiblePortalRows ( objname ; portalname ) ; $$cf_firstRow & Let ([ $$cf_firstRow = "" ; $$cf_lastRow = "" ; $$cf_counter = "" ]; "" ) ))
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:

No matter where the user scrolled, this function lets you know exactly what rows are visible.
The Objname parameter means you'll need to have a named object in the portal rows. The portal also has to be named.

FileMaker 8.5 required.

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

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