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Formula - Filter -> Sort -> Left -> Distinct function

Just wondering if anyone can help me with the above formual?


I want to filter active levels, then sort levels numerically, pick the first 2 numbers of the level and then group them up so the user and select only the levels.

And no I can't include another row into the table for now as I know this would be the easiest way.

Resident Rockstar
Resident Rockstar


Can you provide some more information about your data and what your trying to achieve ?

Having your data structure as it is and what output data your are looking for would help us to guide you.





Not applicable

SQL Data Table = "Locations"

Table Columns = "LOCATIONNAME" & "STATUS"


I'm trying to create a dropdown menu for a user to select a level.

Then based on the level they pick, they are provided a list of locations on that level.


DropDown1 = Filters "Status", Sorts "Location Name", Left "Location Name" & Distinct "Location Name" = 12-345XC -> "12"

DropDown2 = LookUp "DropDown1" with StartsWith "DropDown1" = "12-345XC", "12-456XC", "12-567", etc



DropDown1 = shows "60", "61", "65" -> select "60"

DropDown2 = shows "60-300XC" & "60-500XC" only


Can this even be done? I know it would be easier to just simply add "Level" into the database, but I don't have that access.


65-850XCNot Active
61-400XCNot Active
60-100XCNot Active

You may not had colimn into the DB but you have the AddColumns() function. This is not a delegable function so before thinking about a solution I would like to know how much rows contains your table ?

Not applicable

There's currently 9476 rows with a large amount of them being inactive.

There's also 12 columns, most of which are not populated.

Let say that less than 2000 rows are "actives" so you can use the AddColumns() function. Be careful if you have more than 2000 rows actives your drop-down might be incomplete. And you still have to increase the delegation limit in your app experimental features. 


You can do :


Distinct(AddColumns(Filter(Locations, Status="Active"),"Level",Left(LOCATION AME,2)),"Level").Level


DropdownList2.Items :



Again I'm warning you about delegation issues using the the AddColumns() function .



Not applicable


Distinct(AddColumns(Filter(Locations, Status="Active"),"Level",Left(LOCATION AME,2)),"Level").Level

Doesn't work, but has the above highlighted.

I delete this and it show's Level in the drop down. 


DropdownList2.Items :


Entire formula is red.


I had similar if not the same formula's to the above but they haven't been working for me.

Resident Rockstar
Resident Rockstar

So in the dropdownlist1 you have what you wanted ? Distinct values of the 2 first digits of the Location ?

What is the error message for the second drop-down ?
Not applicable

No, the the first dropdownlist1 shows only what is in the highlighted green section below as 1 option. 


Distinct(AddColumns(Filter(Locations, Status="Active"),"Level",Left(LOCATION AME,2)),"Level").Level

Hence Dropdownlist1 = "Level" only and not the new column list of Level.


The error on the second dropdownlist is "The function filter has some invalid arguments."


Resident Rockstar
Resident Rockstar

My bad, try it like this, without double quotes :

Distinct(AddColumns(Filter(Locations, Status="Active"),"Level",Left(LOCATIONNAME,2)),Level)


And for the second dropdown, the correct spelling is StartsWith() //and no StartWith as I wrote. Sorry I'm doing this on my phone, no PowerApps autocomplete yet !

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