Return items that do not have a blank value

[Anonymous]

On my default browse screen i am using the following formula, Filter(InstructorSignUpCal,IsBlank(Instructor)) which only shows items that do not have a instructor filled in that field. Its a people picker field. I want another browse screen to show items where the Instructor field is not blank. I tried using Filter(InstructorSignUpCal,If(IsBlank(Instructor),false)) but that doesnt work. It must be something small i am missing here. Any help would be appreciated.

[CarlosFigueira · Accepted solution]

Try using the Not function:

Filter(InstructorSignUpCal, Not(IsBlank(Instructor)))

Or you can also use the ! operator:

Filter(InstructorSignUpCal, !IsBlank(Instructor))

[Anonymous]

Awesome, thanks for the quick response! The "!" operator worked. 

[marcoselias]

I get a delegation warning when using the !IsBlank() function on a SQL Server data source. Is there a way to avoid such warning while being able to filter out (or in) NULL values?

[CarlosFigueira]

You can use this workaround suggested by @Meneghino at https://baizini-it.com/blog/index.php/2017/09/28/powerapps-and-azure-sql-database-current-issues/ - instead of using

Filter(tableName, !IsBlank(Field))

You can use this:

Filter(tableName, Field <> Blank())