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lauralovesdata
Frequent Visitor

Display text from Sharepoint List column based on dropdown selection referencing another column

Hello, I have a canvas app that I am working with that I want to display warning text based on a selection from a dropdown box right above it, labeled "Sub-Category." The dropdown is populated from a Sharepoint List called "MoC Lookup List." If a user selects a Category of "Material" and from there selects a certain Subcategory from the dropdown box, they might have to be warned about that particular Subcategory. I have listed in my Sharepoint List for each row/Material whether it is Critical or Controlled. The goal is to show warning text if Materials - "Alloys" is selected as that is considered "Critical". I want to stay away from hardcoding it in the app so it is easier for other members of my team to update the list when needed. 

 

I've been trying different combinations of LookUp but I can't seem to figure it out after hours of Googling. I hope this is even possible. Thank you. 
My column data and app are shown in screenshots below. 

The last formula that I was trying that was completely wrong: 
LookUp('MoC Lookup List', drop_Form_subcategory.Selected.Subcategory, "Critical").CriticalControl

where:

 - MoC Lookup List is my Sharepoint List

 - drop_Form_subcategory is the dropdown name

 - Subcategory is the Sharepoint Column that populates the dropdown

 - CriticalControl is the Sharepoint Column that I want to reference with the lookup

 

lauralovesdata_0-1677892647286.png

 

lauralovesdata_1-1677892755364.png

 

2 ACCEPTED SOLUTIONS

Accepted Solutions
WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @lauralovesdata ,

I am not sure where you are displaying this, but a Notify

If(
   LookUp(
      'MoC Lookup List', 
      Subcategory = drop_Form_subcategory.Selected.Subcategory
   ).CriticalControl = "Critical",
   Notify( . . . . . )
)

If you simply want a Label with this warning, then on the Visible put

LookUp(
   'MoC Lookup List', 
   Subcategory = drop_Form_subcategory.Selected.Subcategory
).CriticalControl = "Critical"

 

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications)   Visit my blog Practical Power Apps

View solution in original post

lauralovesdata
Frequent Visitor

Got it! Had to change the Selected.ColumnName to Selected.Result

LookUp(
  'MoC Lookup List', 
  Subcategory = drop_Form_subcategory.Selected.Result
).CriticalControl = "Critical"

 Thank you again @WarrenBelz and @sopatte for your help!

View solution in original post

7 REPLIES 7
WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @lauralovesdata ,

I am not sure where you are displaying this, but a Notify

If(
   LookUp(
      'MoC Lookup List', 
      Subcategory = drop_Form_subcategory.Selected.Subcategory
   ).CriticalControl = "Critical",
   Notify( . . . . . )
)

If you simply want a Label with this warning, then on the Visible put

LookUp(
   'MoC Lookup List', 
   Subcategory = drop_Form_subcategory.Selected.Subcategory
).CriticalControl = "Critical"

 

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications)   Visit my blog Practical Power Apps

sopatte
Employee
Employee

I think you just need this in your label control's Visible property.

LookUp(
  'MoC Lookup List', 
  Subcategory = drop_Form_subcategory.Selected.Subcategory
).CriticalControl = "Critical"

It could even be simpler depending on the Items property of your dropdown.

lauralovesdata
Frequent Visitor

Thank you @WarrenBelz and @sopatte. Getting closer, but now I get two errors:

lauralovesdata_0-1678128525982.png

Error 1 - Subcategory name isn't valid. I haven't renamed this column so not sure what that is about. I tried using my Category column to see if that would work, and it didn't like that either. I also tried switching my Sharepoint column to a Lookup type and got the same issue. 

Error 2 - Incompatible types for comparison. I tried .SelectedText instead of .Selected but it didn't like that either. 

 

My Sharepoint column types are Single Line of Text for both Category and Subcategory, and I switched CriticalControl from Single to Choice (with no impact). 

As I mentioned above, I also tried adding Lookup type columns as shown below, and the errors were the same. 

 

lauralovesdata_1-1678128855040.png

 

lauralovesdata
Frequent Visitor

Got it! Had to change the Selected.ColumnName to Selected.Result

LookUp(
  'MoC Lookup List', 
  Subcategory = drop_Form_subcategory.Selected.Result
).CriticalControl = "Critical"

 Thank you again @WarrenBelz and @sopatte for your help!

WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @lauralovesdata ,

That is in conflict with what you posted - Result comes from a Distinct filter, which is nowhere in in your posted code. Marking your own post as the solution will only confuse users reading this. The responses you receive can only be based on what you post.

I am using a Distinct filter in my Subcategory dropdown, which I didn't think was relevant but I now I understand. 

 

Here is what I have for Items property in my Subcategory dropdown:

Ungroup(
    Table(
        {Value: Blank()},
        {Value: Distinct(
            Filter(
                'MoC Lookup List',
                Category = drop_Form_category.Selected.Result
            ),
            Subcategory
        )}
    ),
    "Value"
)

disregard

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