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Default ONLY First Gallery ComboBox Item to Specific Text

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Posted on by Phineas

5,325 Super User 2025 Season 2

I have Gallery1.

I have Button1 (Add Gallery Item).

Gallery1 has ComboBox1.

The user can create as many items in Gallery1 as is necessary using
Button1.

I want ComboBox1 to default to "Fiber Waste" for the FIRST Gallery1
item, and ONLY the first Gallery1 item.

When subsequent Gallery1 items are created ComboBox1 default content
should be blank with the use able to select from the ComboBox list of items.

Is the above possible?

I am currently using the following to populate the default content into ComboBox1.

It is working, but it populates ALL subsequent Gallery1 ComboBox1 items with
"Fiber Waste", which is not desired.

{
   Consumable_Description:
   If( 
      Activity_Invoice_Type_Fld.Text in ["Drop", "Storm Work", "Service Call"],
      "Fiber Waste",
      Blank()
   )
}

Categories:

Building Power Apps

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Suggested answer

mmbr1606 14,605 Super User 2025 Season 2 on at

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hey

can u try this please:

If( ThisItem = First(Gallery1.AllItems) && Activity_Invoice_Type_Fld.Text in ["Drop", "Storm Work", "Service Call"], { Consumable_Description: "Fiber Waste" }, Blank() )

If my answer was helpful and it solved your issue please mark it as verified answer. If it helped but did not solve please consider giving me a like :)

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Phineas 5,325 Super User 2025 Season 2 on at

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The suggestion created a 'circular reference' error.

Error:

This rule creates a circular reference between properties, which is not allowed. A property cannot reference itself or other properties affected by its value. This is the shortest circular reference: 'Activity_Consumable_Description_ComboBox'.'DefaultSelectedItems' -> 'Activity_Consumable_Description_ComboBox'.'DefaultSelectedItems'

If(

ThisItem = First(Consumables_Gallery.AllItems) &&

Activity_Invoice_Type_Fld.Text in ["Drop", "Storm Work", "Service Call"],

{

Consumable_Description:

"Fiber Waste"},

Blank()

)

-----------------------------------------------------------------------------------------------------------------

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mmbr1606 14,605 Super User 2025 Season 2 on at

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hey

what is in the button onselect?

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Verified answer

Phineas 5,325 Super User 2025 Season 2 on at

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I finally got it.

Consumables Gallery Items has -

Filter(colConsumables, !rem)

Add Consumable button OnSelect has -

Collect(

colConsumables,

{

intConsumablesID: GUID(),

rem: false,

UniqueID: Activity_Gallery.Selected.intActivitiesID

}

);

Set(varConsumablesNoteVisible,false);

Consumable Description ComboBox has -
Items:

Filter(colConsumableChoiceCollection,Consumable_Location = JS_Location_Dropdown.Selected.Project_Name
&& !(Consumable_Description in colConsumablePicked.Consumable_Description))

DefaultSelectedItems -

{

Consumable_Description:

If(Activity_Guid_Fld.Text in FirstN(colConsumables.intConsumablesID) And

CountRows(colConsumables) >=1 And

Activity_Invoice_Type_Fld.Text in ["Drop", "Storm Work", "Service Call"],

"Fiber Waste",""

)

}

OnChange -

Collect(colConsumablePicked,Activity_Consumable_Description_ComboBox.SelectedItems);

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mmbr1606 14,605 Super User 2025 Season 2 on at

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hey

glad you were able to solve the issue.

for future topics a request for those who help:

please include all relevant code parts that interact with the ones making trouble ;)
it will make it easier for us to spot potential issues

thanks in advance

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