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Text labels on other screens not refreshing

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Posted on by Kurt-o

Hi. I'm building my first Canvas Power App and it has three screens.

I am having trouble with calculations in text labels not updating. I have a dropdown on Screen 1 with the discount rate and the payback period is calculated on screen 2 in a text label. When I change the value in the dropdown, a collection is updated and that should update the value of the text label. Then I report that value on Screen 1.

Sometimes it works fine, but often I need to navigate over to Screen2 to get the value on Screen 1 to update. I don't have any actions that occur "OnVisible" on Screen2 or Screen3. Does anyone have a way to avoid this without adding a button?

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v-qiaqi@microsoft.com Microsoft Employee on at

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Hi @Kurt-o,

How you update the collection when you change the value in the dropdown? OnChange property of dropdown control?

Actually, if you update the collection on OnChange property of your dropdown control, we could directly calculate the payback period on screen1 by the formula you set for the Label on Screen2.
Kurt-o 6 on at

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Hi Qi,

The collection updates OnChange. Yes, that's a good idea with adding a calculation on screen1. I'll try using a variable and see if I can get it to work.

Thanks.
Kurt-o 6 on at

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I managed to solve this by setting some variables in the OnChange property of the dropdown and another input. Now it updates immediately without having to switch between screens.