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Post Prodigy
Post Prodigy

Checking Combobox Values

Thank you for taking the time to read my question.


I have an edit for and I want to change the color of a Combobox border if the value in the ComboBox does not match the saved value;


PelMed = ComboBox


If(frmPelleting.Mode = FormMode.Edit && ThisItem.Medication <> Concat(PelMed.SelectedItems,Title,","),Orange, Parent.BorderColor)



This does not work because Concat(PelMed.SelectedItems,Title,",") returns a list of commas I'm finding.


I've read that SelectedItems does not equal DefaultSelectedItems... and SelectedItems does not get set until the user interacts with the ComboBox.


I also tried Concat(PelMed.DefaultSelectedItems,",") but there is no such thing...


How do I tell if the user made a change to the ComboBox vs. the previously saved record?



Community Champion
Community Champion

  1. Please share your Combobox items property
  2. Concat(PelMed.SelectedItems.Value,Value,",") - Does this produce anything?


Hi @StalinPonnusamy 


Here is the Items code:



Filter(Medication,Or(MedicationFacility = SelectedFacility.Text,MedicationFacility = "All"),Or(MedicationLine = BagLine.Selected.Line,MedicationLine = "All"),IsActive).Title




I get Red Underline if I change Title to Value.







Not sure if this is helpful, but the DefaultSelectedItems = 





And when I expand the ComboBox, the values in the DefaultSelectedItems for the ComboBox are not highlighted... like there is a disconnect somewhere...


Maybe that's why I'm not getting anything when I use Concat() on the ComboBoxes SelectedItems field?




Ok, I have it!


Power Apps Combo Box DefaultSelectedItems - YouTube - Here Shane makes an important point at 3:10 of the video. The data source has to be the same table for DefaultSelectedItems and Items. That's where my solution fell apart.


So I changed my DefaultSelectedItems to:

Filter(Medication,Title in Split(Parent.Default,",").Result,MedicationFacility = SelectedFacility.Text, MedicationLine = PelLine.Selected.Line)


Then I changed my BorderColor formula to:

If(frmPelleting.Mode=FormMode.Edit && ThisItem.Medication <> Concat(PelMed.SelectedItems.Title,Title & ","),Orange, Parent.BorderColor)


Voila!! no more Orange border.


Thank you so much @StalinPonnusamy  for all your replies to my post. I really appreciate it.

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