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Help with a formula to extract data from one Collection into another

I am trying to use a data element from a collection to drive a filter function.  The command I am trying to get to work is the following

 

Filter('[dbo].INV_BASE]', FillmentID=collection.ID)

 

 

- dbo.INV_BASE is a custom entity with a key field of FillmentID

- "collection" is an existing collection with a records that contains a field called ID 

 

The field called ID contains a number

 

I get the blue dot and no data returned.

 

Thanks,

 

todd

 

1 ACCEPTED SOLUTION

Accepted Solutions


@thanke wrote:

thanks again.  Is there anyway to reference a specific data element within a collection within the filter function that doesn't require a button?  the data is in the collection, I just don't know how to reference and pull it directly within a function.


 

Yes, depending on how your data is organized I think you can do it. @CarlosFigueira had an answer in a post earlier that may help:

 

https://powerusers.microsoft.com/t5/PowerApps-Forum/Filtering-Items-in-a-gallery/m-p/69044#M28267

 

You can filter the second gallery based on the Selected property of the first gallery. If the tables are related based on the 'CategoryId' column, then you could have this as the Items expression in the second gallery:

Filter(Product, CategoryId = CategoriesGallery.Selected.CategoryId)

 

Hopefully that guides you to a good answer.

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JRaasumaa
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Memorable Member


@thanke wrote:

I am trying to use a data element from a collection to drive a filter function.  The command I am trying to get to work is the following

 

Filter('[dbo].INV_BASE]', FillmentID=collection.ID)

 

 

- dbo.INV_BASE is a custom entity with a key field of FillmentID

- "collection" is an existing collection with a records that contains a field called ID 

 

The field called ID contains a number

 

I get the blue dot and no data returned.

 

Thanks,

 

todd

 


 

collection.ID needs to be a single item to compare to using =

 

The method you are using currently probably says in the blue dot exactly why it doesn't work, can you provide that information? My guess is something similar to it not being a single item.

thanks.  How do I pull a single item from a collection?


@thanke wrote:

thanks.  How do I pull a single item from a collection?


 

Maybe use a button in the gallery/card to store the specific item in a variable. You can use the the OnSelect property of the button to assign that items ID to a variable.

 

Something like: 

 

UpdateContext({IDSelected: ThisItem.ID})

Then you can use your filter like:

 

Filter('[dbo].[INV_BASE]', FillmentID=IDSelected)

 

thanks again.  Is there anyway to reference a specific data element within a collection within the filter function that doesn't require a button?  the data is in the collection, I just don't know how to reference and pull it directly within a function.


@thanke wrote:

thanks again.  Is there anyway to reference a specific data element within a collection within the filter function that doesn't require a button?  the data is in the collection, I just don't know how to reference and pull it directly within a function.


 

Yes, depending on how your data is organized I think you can do it. @CarlosFigueira had an answer in a post earlier that may help:

 

https://powerusers.microsoft.com/t5/PowerApps-Forum/Filtering-Items-in-a-gallery/m-p/69044#M28267

 

You can filter the second gallery based on the Selected property of the first gallery. If the tables are related based on the 'CategoryId' column, then you could have this as the Items expression in the second gallery:

Filter(Product, CategoryId = CategoriesGallery.Selected.CategoryId)

 

Hopefully that guides you to a good answer.

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