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Filtering records that are NOT in another table and showing in gallery

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Posted on by guyinkalamazoo

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Need a bit of help here. I have a gallery that displays some master records, say like Customers. The user can click on a customer record and it will bring up any orders for that customer and those are listed in a second gallery. I have a third gallery that needs to display items that the customer did NOT order. So say the customer is #100. They two orders, 1001, 1002. The inventory list is A, B, C, D, E. For order 1001 they ordered items A, C, E. For order 1002 they ordered A, B, C, D and E. So what I need is this third gallery to show items B and D if the first order (1001) is selected. If order 1002 is selected then it would not display any records because all five items are in the order. Hope this makes some sense. That third gallery is meant to show exceptions so if it's items are missing from another table (the order table) then they will be listed.

Thanks

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Drrickryp Super User 2024 Season 1 on at

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@guyinkalamazoo

With the proviso that the table in question does not contain more than 2k items, (under the delegation limit), you can do something like this:

With(
{finv: ItemsPropertyfrom Gallery2},
Filter(
InventoryList, !(ID in finv.ID)
)
)

The With() formula creates a table that is the same as your gallery2 and then filters the inventory list against the Items that have been previously selected. Because the "Not" and "in" operators are used in this formula, delegation limits will apply so your inventory list cannot exceed 2k items.
guyinkalamazoo 182 on at

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And yes, the table would contain under 2K. And thanks for this information!