I need some help understanding Display Name on View Details and View Forms

[wjjunyor]

I am trying to rationalize the AppSheet performance showing  Display Names. 

We have two screens: 

1. Faturas Abertas_Form (system generated): 

   

2. Faturas Abertas_Detail (system generated): 

   

Why Lord?

[Rafael_ANEIC-PY · Accepted solution]

Hello @wjjunyor,

When you are within the expression editor for the display name of that form view, you should see the message:

That's why that expression doesn't work, and I believe it is because you need to have the display name ready at all times, and if you use one of the columns in your form as a display name there might be times where AppSheet won't have the information available to give it a name.

[wjjunyor]

I understand - Although, it could be doable with a SWITCH or IF.