Set global variable from combo box selection

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Posted on by Schwartz_Cory

184

Hi.

I am trying to create a dropdown that contains a list of items. The user is supposed to select which item belongs to them, and once they do, they will navigate to the next screen with that item selected.

To achieve this, I am setting a global variable called varAffiliation in the OnChange of the ComboBox1:

Set(
 varAffiliation,
 ComboBox1.Selected.Name
);
Navigate(
 'SIB MD Main Screen',
 ScreenTransition.Cover
);

When it navigates over to the next screen, the global variable varAffiliation is listed as blank. Can someone let me know what I am doing wrong here?

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Building Power Apps

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BoHamad on at

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Hi @Schwartz_Cory

it seems you’re doing it right but maybe there is a method affect the value of the global variable some where. You can check the usage of the variable, and check the cycle of your process if there is a method make changes on your variable

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Drrickryp Super User 2024 Season 1 on at

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@Schwartz_Cory

Try

Set( varAffiliation, ComboBox1.SelectedItems )

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Schwartz_Cory 184 on at

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Thanks for the idea.
I am using this variable and changing it multiple times throughout the app. I tested your idea by changing varAffiliations to varTest and still have the same results. (varTest is blank on the next screen)

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Schwartz_Cory 184 on at

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This turns the variable into a table. I just need the name of the selected item from the combo box.

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BoHamad on at

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Hi @Schwartz_Cory

try to pass the variable with a param

Navigate(yourscreen,your transaction, { varTest : ComboBox1.Selected.Name})

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Schwartz_Cory 184 on at

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Good idea too, however still did not fix the issue and varTest is still blank on the 'SIB MD Main Screen'.

Navigate( 'SIB MD Main Screen', ScreenTransition.Cover, {varTest:ComboBox1.Selected.Name} );

I would rather this variable be a global variable instead of a context/local variable

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Schwartz_Cory 184 on at

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Update: Currently still facing this issue. Only workaround was to set the selected item in the combo box onto a button and have the user click on the button to set the variable while navigating to the next screen. That method works but I would rather it be OnChange of the combo box. oh well.

Note: using dataverse in the combo box selection, not sure if it plays a factor or not in debugging.

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BoHamad on at

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Hi @Schwartz_Cory

in this case set the visibility of the button to false then onchange of the combobox
Try:
Select(nameofthebutton)

hope this help

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Schwartz_Cory 184 on at

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Honestly I thought this would work, but still same! The variable does not carry over into the next screen. 😞
But it works fine if the user manually clicks the button. Weird!

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