Calendar Screen template : Why 41 days ??

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Posted on by h-nagao

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Hello,

I'm applying Calendar screen template to my app.

To convert single calendar into multiple month (Gallery-subGallery), I read document below;

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/screen-templates/calendar-screen-reference

In this docs, _maxDate, which is one of query parameters to get calendar event from Outlook, is given by formula as _firstDayInView + 40. and also "the calendar displays a maximum of 41 days"

However, Count Rows of Items property of that gallery is 42! it means the calendar can displays a 42 days maximum. If so, _maxDate should given by _firstDayInView + 41

What was I missing??

Thanks,

Hiro

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Building Power Apps

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v-yutliu-msft on at

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Hi @h-nagao ,

Please note that the range of dates has many situations.

And there is a special one:

The set of 0 through 41 is used for the items in the calendar gallery because, in the worst-case scenario, the calendar view will have to display 42 full days. This occurs when the first of the month occurs on a Saturday and the last of the month occurs on a Sunday. In this case, the calendar shows six days from the previous month in the row containing the first of the month, and six days from the following month in the row containing the last of the month. This is 42 unique values, of which 30 are for the selected month.

The doc that you mentioned has described very detailed, please read the comments blow the code.

Best regards,

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h-nagao 392 on at

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Thanks, @v-yutliu-msft .
I have noted your comment.
I knew, we don't need to care 40/41, since effective items are max 31, but my point here is just consistency among description in Docs, code, and actual # of items in Gallery.

Anyway, I will close this post.

Thank you very much!
Hiro

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