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I only want a list box to appear on the selection of a value in another list box?
i.e ListBox1 contains all the Warehouses
ListBox 2 with Warehouse Locations only appear on the selection of the raw material warehouse
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I would not use a trigger here - they can be difficult to manage. Instead, consider using a Show Condition on the Warehouse Locations that looks like GetSelectedCount(Warehouses)>0
Hope this helps,
You have to trigger the field in this way:
Go on Settings -> document properties -> triggers
in the field event triggers box select your field and add extion -> external -> set variable
write in the upper box vShow and in the lower box write 1
Now in the script you need to define the varible in this way: LET vShow=0; and reload your document.
The last thing, the secon list box must be conditioned to be shown only if vShow=1 so go in layout -> conditional and write vShow=1
Let me know