Checkbox Default

[Phineas]

I have Checkbox1 in Gallery1.

The default in the List for Checkbox1 is 'false'. The Power App code in the default property of Checkbox1 is -
     LookUp('List',EmployeeNumber = GalleryEmplyeeNumberFld.Text,DocumentReceived)

I want Checkbox1 to show the status of the corresponding column in the List, which in the current case is 'true'.

I do get a check in the box, indicating 'true' as the current condition; However, with it I am getting the following warning -
      Warning: Expecting a true or false value. The current value may cause unexpected behavior". 

What am I doing wrong?

[mmollet]

Try doing this on the screen visible if that will work in your solution. Then use selectedItem.DocumentReceived as your default value on the checkbox. 

UpdateContext({selectedItem:LookUp('List',EmployeeNumber = GalleryEmplyeeNumberFld.Text)})

Let me know if this changes anything. Is there a checkbox per gallery item? If so you can just use ThisItem.DocumentsReceived for the checkbox default value. 

EDIT: As @Pstork1 is getting at the type of the column will be super important. What I said above is assuming a yes/no column type so that booleans are used. As him and I both stated try using ThisItem.DocumentsReceived first as that would be the easiest fix by far. 

[Pstork1]

What kind of column is DocumentReceived in the list?   Since it all appears to be in the same list is there a reason you aren't just using ThisItem.DocumentReceived for the default?

[Phineas]

The column in the List is single line of text. The result is the same when I change it to ThisItem.DocumentReceived.

The data is populating Gallery2 (including Checkbox1) based on a varRecord variable in a button in a neighboring gallery.

[mmollet · Accepted solution]

So its a single line of text that is just saving the value "true" or "false" then?

If so use the following:

If(ThisItem.DocumentReceived = "true", true, false)

or if you are using "yes" and "no"

If(ThisItem.DocumentReceived = "yes", true, false)