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## Calculate gallery columns individually

I have a powerapp that is taking and adding hours per different categories.  I already know how to get the total of each column in my gallery, but I need to calculate that total against another gallery that has the required hours for each column that the hours are entered.

It works great on the first column because that is the gallery field, but how do i get it to do it to each respective column ?

so in the screen shot above the first column is giving the correct total of 46 but the second column should be 10 in the Hours still needed row .

Can this be done?

7 REPLIES 7
Super User

I'm gonna ask for more info in case anyone else has this issue when looking at your data to find an answer. How does that top gallery relate to this bottom gallery, not seeing any correlation between the top image and the smaller image on bottom.

More important though can you share what formulas you have in that bottom gallery for each control, cause I am not seeing how its getting 40 from 90 just from seeing the image.

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Super User

Ok Top gallery is used to enter hours per category listed above, the bottom total columns calculate the totals

So for the first gallery this is pulling in specific numbers based on the other calculation you helped me with to switch based on the Position type, so that Required Hours are based on the specific employee position.

The formula for the gallery is this

``SortByColumns(Filter('METER TECHNICIAN Work Hours',Upper(varCurrentUserFullName)=Label6.Text),"Date",Descending)``

The required hours worked has this formula

``If(!IsBlank(LookUp('Apprentice List','Apprentice Email'.DisplayName=varCurrentUserFullName).Position) =false,Filter(Categories, CategoryType=Dropdown1_5.Selected.Title),Filter(Categories, CategoryType=Label15_5.Text))``

Actual Hours

``Sum(Gallery8_5.AllItems, Value(TextInput1_85.Text))``

The hours needed formula is this

``Sum(Label3_8-Label11_15)``

% Complete in Category (which also isnt working)

``Text(Label11_15.Text/Label11_25.Text *100,"0%")``

Super User

Oh ok, well see since things like Label3_8 etc when in a gallery exist in multiples in a single gallery at any 1 time, you can't really reference them for formulas because it wont necessarily reference the one for that item. you need to work your formula out to reference that data source, not the control.

maybe something like this (just a stab becuase i dont know your source well but i think its general direction

``````Sum(
If(!IsBlank(LookUp('Apprentice List','Apprentice Email'.DisplayName=varCurrentUserFullName).Position) =false,Filter(Categories, CategoryType=Dropdown1_5.Selected.Title),Filter(Categories, CategoryType=Label15_5.Text))
-
Sum(Gallery8_5.AllItems, Value(TextInput1_85.Text))
)``````

this just combines the two formulas you wrote that seem to be giving accurate numbers into a simple subtraction formula. should get you in right direction

_____________________________________________________________________________________
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Super User

The formula doesn't give me an error with red lines but it is expecting a value, text, Boolean error.  But I am not sure who that works either.

Super User

Didn't realize you were technically referencing text values, was just copy pasting, try this?

``````Sum(
If
(
!IsBlank
(
LookUp(
'Apprentice List','Apprentice Email'.DisplayName=varCurrentUserFullName).Position
)
=false,

Value
(
Filter(Categories, CategoryType=Dropdown1_5.Selected.Title)
),

Value
(
Filter(Categories, CategoryType=Label15_5.Text)
)
)
-
Sum(Gallery8_5.AllItems, Value(TextInput1_85.Text))
)``````
_____________________________________________________________________________________
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Super User

Super User

I guess your filter portion could assume a filter of a datasource could have more than 1 result since technically you arent required to have only one record that matches the filter. It might be better instead of referencing categorytype and .selected.title, to referencing .ID unless your dropdown isn't pulling its options from your datasource? will there generally be multiple records though that all have to be pulled and added up? If thats the case it could be better to reference sumcolumn with a filter. If you want you could send me a pic in messages of what your list this is pulling its info is structured like, and the column types etc. along with exactly how everything in that top gallery works, kind of assuming it pulls records and displays their values in text boxes so can edit if needed, along with some way to add another row?

_____________________________________________________________________________________
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