Displaying/modifying values in lookup, based on what has been selected on other lookups

Dynamics 365 for Finance and Operations/AX Developer Forum
1

Hello guys,

I’m doing some sort of research on this right now and based on what I found already, I’m still not sure what would be the best way of implementing such functionality.

So, say I have a couple of lookup fields (Field1 and Field2), where the list of ItemIds and Qtys is shown on each of them (derived from a table). I select one of ItemIds and somewhere on a form I set the Qty I would like to use. The next time I use this lookup, I would like to see the Qty I just set somewhere in the form being subtracted from the Qty returned by lookup query.

Since the results are not committed at this point of time, I would need to use some temporary storage, such as temporary table or List, or perhaps data contract class. Initially I thought I could modify the lookup query before the results are returned, but I don’t see it how could it be done.

Would anyone be able to put me on a right direction, please?

The resources I found so far:

2

I’m still not sure what you’re trying to achieve. Let’s say that your Qty is 5. Do you want to subtract 5 from all quantities displayed in the lookup?

3

Sorry, I should have been more precise.

Ok, let’s say Field1 lookup returns a list of items and qtys next to them as:

ItemID		Qty
DD010AM1N0	5
DD010AM1N1	10
DD010AM1N3	6

Now, I select first item (DD010AM1N0) and somewhere on a form (most likely on a field next to it) I enter it’s qty as 2. Later on I will do something with this user input, but at this point in time it’s not being subtracted from 5 that exist in a table.

So now, if I select Field2 and one of the items returned by lookup happens to be DD010AM1N0, it will show me the qty of 5, when I would prefer to see it as 3, that is - 2 subtracted from 5 on a previous action.

Does this make any sense?

4

Field1 and Field2 are using same lookup method.

5

I don’t think there is any good solution. You could use a temporary table, but it doesn’t seem very efficient for subtracting a value from a single row.

Maybe you can design your UI to something that can be done in an easier way.

6

Thank you, Martin. That’s what I thought, I mean, whatever I choose it will still look like an overkill for such a simple requirement. I just thought, because of my still limited amount of AX knowledge, there is someone who have achieved this in a simple way :slight_smile:

7

Asking is a good idea; at least you know that you didn’t miss something obvious. And who knows, maybe somebody else will come with some clever solution.