I have a Gallery.
In a textfield :
Text( First(ThisItem.'Order Details').'Unit Price' , "[$-en-US]$ #,###.00" ) work.
Text( First(ThisItem.'Order Details').Quantity , "[$-en-US]$ #,###.00" ) work.
But
Text( Sum(ThisItem.'Order Details','Unit Price' ), "[$-en-US]$ #,###.00" ) does not work.
Text( Sum(ThisItem.'Order Details',Quantity ), "[$-en-US]$ #,###.00" ) does not work.
Text( Sum(ThisItem.'Order Details',Quantity*'Unit Price' ), "[$-en-US]$ #,###.00" ) does not work.
This formula is uses scope, wich is not presently supported for evoluation.
???

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