Conditional formatting not updating as I change record

[3link]

I have a standard input form with 8 textboxes that require input. To help remind the user to fill each textbox, I am trying to apply conditional to each box (basically red background when value = ""). This works when the form first loads. But as I move between records or create a new record, the formatting goes away.

I tried applying the formatting rule to the field and to the object itself, but neither has worked.

 

[CJ_London]

it should be applied to the control not the field. and blank values will not always be "", they may also be nulls.

I suspect you have used 'field value is'.. you need to use 'expression is..' and modify your conditional formatting formula to include for nulls as well

 

[3link]

it should be applied to the control not the field. and blank values will not always be "", they may also be nulls.

I suspect you have used 'field value is'.. you need to use 'expression is..' and modify your conditional formatting formula to include for nulls as well

Thank you! That did it. I changed it to expression IsNull(ControlName.Value).