>> Set(varLast,First(SortByColumns(DCCLog_Corrs,"cr90b_newindex",SortOrder.Descending)).NewIndex);// which is better ? max or this one?
In answer to the above question, the approach you're using now (ie, First/Order by descending) is better.
Can you clarify what isn't working on mobile and tablet? Is it not finding the record, or is it not navigating to the new screen?
Can you confirm that you've published your app? I assume you're using the mobile player, rather than opening the app in a browser on the mobile and tablet?
Sorry for the post ,it is working. I realized that I had designd another button for mobile screen and not paste same formulas for its OnSelect property.
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