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Power Platform Community / Forums / Power Apps / Cascading dropdown menus
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Cascading dropdown menus

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Posted on by 12
Hello, am trying to create a cascading dropdown lists for Incidents categories and types. 
 
I have created an online excel sheet and a table and linked it to the application - and have types the functions but am not able to see the values.
 
Table name: Table1
Category dropdown: Dropdown_cat
Type Dropdown: Dropdown_typ
 
screenshots as below.
 
Categories:
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  • Suggested answer
    Michael E. Gernaey Profile Picture
    53,429 Super User 2025 Season 2 on at
     
    For Category(the second) one, some questions.
     
    Suggestion 1: Add a Refresh(Table1) in your OnVisible of the Form to try to force it to reload.
    Suggestion 2: Add a Gallery to a Screen or a DataTable, and bind Table one to that. Just to see if loads any of the data.
     
    Question 1: These look like Classic Dropdowns, is that correct?
     
    1. Can you click the control (like you have), then on the right-hand side, you should see the properties and verify that the Value (dropdown) has a Column Selected, and that your Items is set too here. If not please select them.
     
    Also, did you enable the Depends on? You don't have too, just checking if you did.
     
    These checks are to make sure that (if the refresh) doesn't work, we can isolate which part is 
     
    2. If you run the app (after checking all of #1s things) and you have refreshed in OnVisible etc, does the Drodown open up and is long.. as if it has data, but you cannot see it? And if you click any of the lines.. it actually acts like you picked something and closes?
     
    3. Also for your cascading. Leverage this
    Dropdown2.SelectedText.Value
     
    Where change Dropdown2 to be your Category filter in your Type Items filter 
     
    If all else fails
     
    It looks like you have done everything. So, it's possible you just need to save, CTRL F5 to refresh to have it take effect. That or you can go to the Data Tab, click your Table1 (right click) and choose refresh.
    Then if still nothing, Data Tab, click your Table1 (right click) and choose edit data. See if it actually opens the excel properly.
     
    The last final thing is if its locked by something else this can happen so make sure its not. And note: if you delete the file ever and recreate it (even with the same name) it will break your app.
     
    Let me know and we can continue trying to figure it out
     
    or if any of these work, I'd be grateful if you Marked it as such.
     
    Thanks!!
  • Suggested answer
    w.p Profile Picture
    8,339 Super User 2025 Season 2 on at
     
    Everything is fine, except you missed the display field.
     
      
     
     
  • Suggested answer
    stampcoin Profile Picture
    5,058 Super User 2025 Season 2 on at
    Your code doesn't have problem.
    I agree with @Michael E. Gernaey, How to refresh the data from Excel will be your first problem, unless the data in Excel maintained during for example midnight, so when the users use the app, the data is kind of 'Static' for them.
    I don't recommend this, since the end user will not have a good user experience.
    If you really wan to stick to this , use collection and combine timer ( if the data change frequently).
     
    good luck.
  • ronaldwalcott Profile Picture
    3,847 Super User 2025 Season 2 on at
    Are you creating this in a SharePoint form?
  • JK-27031040-0 Profile Picture
    12 on at
  • JK-27031040-0 Profile Picture
    12 on at
    @w.p, still I cannot see values - can we connect on teams please to sort this out please?
  • w.p Profile Picture
    8,339 Super User 2025 Season 2 on at
    Sorry, I prefer to communicate like this. Other members might be willing to have a Teams call.
     
    When it's not in design mode, can you share screenshots of what happens when you select the dropdown?
  • JK-27031040-0 Profile Picture
    12 on at
    @w.p, no worries - will you able to find the missing art from the below pictures? I don't see values
     
     
     
  • w.p Profile Picture
    8,339 Super User 2025 Season 2 on at
     
    Can you click the red X, share the error message, or try removing and re-adding it?
  • stampcoin Profile Picture
    5,058 Super User 2025 Season 2 on at
    I suggest that you delete the type dropdown, and add it back. .
    your code looks ok ( I created one app similarly). 
    you can add a button load the data into a collection and test it.
    Category dropdown.
    CategoryDropDown
     
    Item DropDown.
    Item
     
    Excel Table1, 
     
     
    You will be there.

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