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How to create a dropdown box containing all days of the year

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Posted on by YapaYapa

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Hello everyone,

anyone that can help me with the following issue please:
I would like to have in my form a combo or drop down box where users could pick multiple dates.

Is there any other way rather than having to update dates in the related sharepoint column or using "start" and "end" date?

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Building Power Apps

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turnerj3 2,039 on at

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@Fedegallo ,
The best way I can think of is to open a blank excel document, format the first column to your date format you wish.
Then enter the first day of year in cell A, then drag the + down to 365 to have all dates. Keep those selected and choose table to create a table out of the dates. Save excel file, go into sharepoint and create a list from xls. Then add your list to powerapps data and make the items for your dropdown the list.

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timl 36,749 Super User 2026 Season 1 on at

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@Fedegallo

Here's the formula to create a list of all days in the current year.

With({daysInYear:DateDiff(Date(Year(Now()),1,1), Date(Year(Now())+1,1,1) ) }, ForAll(Sequence(daysInYear,0), DateAdd(Date(Year(Now()),1,1), Value) ) )

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turnerj3 2,039 on at

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@timl ,
Hat's off to ya!

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timl 36,749 Super User 2026 Season 1 on at

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Thanks @turnerj3!

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YapaYapa 125 on at

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Hello @timl ,

worked like a charm thanks.
However, I believe my format is off:

How can I solve it?

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timl 36,749 Super User 2026 Season 1 on at

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Hi @Fedegallo

You can format the date by adding a "DisplayText" column and applying your desired date format. In your combobox control, you would set the DisplayFields property to ["DisplayText"]

AddColumns( With( {daysInYear:DateDiff(Date(Year(Now()),1,1),Date(Year(Now())+1,1,1))}, ForAll( Sequence(daysInYear,0), DateAdd(Date(Year(Now()),1,1),Value) ) ), "DisplayText", Text(Value,"dd/mm/yyyy") )

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