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Conditional visibility in edit form

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Posted on by benshaw

I would like to show/hide input fields based on the value of a lookup in an edit form. I have successfully implemented an IF function in the visible property on a view form that works. However, I need to have the show/hide feature refresh after changing the value in the lookup.

Is there a function that will redraw the form based on the current record once the value in the lookup changes? Or another way to implement this behaviour?

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Building Power Apps

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Brian Dang 3,976 on at

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If I understand this--you want a LookUp in an Edit Form to affect what fields are shown in the resulting View Form.

Edit Screen: Save a context variable based on the LookUp in the Edit Form.
UpdateContext({var1: yourvaluehere})
Edit Screen: Setup the Edit Form's OnSuccess property to Navigate to the Screen with your View Form and send the context variable from step 1.
Navigate(Screen2,Fade,{var1: var1})
View Screen: Setup the Visible property of the desired field in the View Form to a condition based on the context variable that was passed in step 2. Be sure to select the field itself and not objects within the field. This makes a difference. The example below shows nested IFs assuming your LookUp returns 1,2,3...
DataCard1Value.Visible: If(variable=1, [true/false], variable=2, [true/false], variable=3, [true/false] )
How this works: prior to submitting your form on the Edit Form screen, the LookUp will be saved in a variable. The app will go to the screen with View Form. Based on the variable, it will show/hide certain fields as you have set.

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benshaw 16 on at

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Hi mr-dang

Thank you very much for your response. That is almost what I want, but I want the LookUp in the Edit Form to affect what fields are shown later in that same Edit Form. Is there a way to update the Edit Form dynamically as the LookUp value is changed that you know of?

Thanks
Ben

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Meneghino 6,949 on at

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Hi benshaw, you need to set the Visible property of your datacard to something like: Dropdown1.Selected.Value = "XXX"
Where Dropdown1 is your dropdown and "XXX" is the value that should make the datacard visible. You can use && and || to build up the expression.

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