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codebrane
Level 8

ifEmpty and else

In one screen I have a gallery with the next button set to:

 

Navigate(Screen1,Fade, {usr: Subtitle2.Text})

 

and in Screen1 I have in Item:

 

If(!IsEmpty(usr), LookUp(Students, Title = usr))

 

and it loads the information on the user from the DataSource. I've added a + button to the gallery screen that does:

 

Navigate(Screen1,Fade, {usr: ""})

 

and changed Screen1 Item to:

 

If(!IsEmpty(usr), LookUp(Students, Title = usr), Defaults(Students))

 

but when usr is "" I get "no item to display" in Screen1. If I use Item: Defaults(Students) it works and displays empty fields that let me add a new record.

 

Is there a way to use isEmpty and else? i.e. if usr is not empty show the record, else use Item: Defaults(Students)

2 ACCEPTED SOLUTIONS

Accepted Solutions
codebrane
Level 8

Re: ifEmpty and else

turned out I needed to use isBlank instead of isEmpty. Curious why "" == isEmpty = false

View solution in original post

Super User
Super User

Re: ifEmpty and else

Hi @codebrane

 

The reason for this behavior is because the IsEmpty function is designed to test for empty tables.

 

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-isblank-isempty

 

In this instance, IsBlank is the correct function because you're testing that the field value "usr" is blank.

View solution in original post

2 REPLIES 2
codebrane
Level 8

Re: ifEmpty and else

turned out I needed to use isBlank instead of isEmpty. Curious why "" == isEmpty = false

View solution in original post

Super User
Super User

Re: ifEmpty and else

Hi @codebrane

 

The reason for this behavior is because the IsEmpty function is designed to test for empty tables.

 

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-isblank-isempty

 

In this instance, IsBlank is the correct function because you're testing that the field value "usr" is blank.

View solution in original post

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