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Pull in related list items using a customized PowerApps list form

PowerApps is a great way to easily customize the new, edit, and/or display forms of list items in SharePoint online. In some cases you may also want to pull in items from another list with items related via a lookup column. In this blog I will discuss the steps to use a gallery control to pull in these related items.

This blog assumes that you have a working knowledge of using PowerApps to customize a list form, if not you can view some information on getting started with PowerApps here:

Starting with a PowerApps customized list form, from the PowerApps canvas select 'Insert' from the ribbon and select one of the Gallery controls. I'll be using Vertical for this demo.

From the Data pane select add data source to connect to the list you would look to pull in data from. Note: This can be any list or library in SharePoint so while lookup columns are site specific if you use something like Flow to relate items via the ID you could also pull in those items via the same method.

The next step is configuring the Items returned in the Gallery, you can do this by selecting the 'Items' property of the control and configuring the filter function as follows:

filter(list,filter criteria)

  • where 'list' is list you would like pull data from
  • where 'criteria' is the name of the column you would like to filter on, in this case it is the id value of a lookup column called projectLookup, equals the id of the current item in the display form. The current item of the display form can be pulled in using 'SharePointIntegration.SelectedListItemID'
    Note: Lookup columns are non-delegable and may not work with larger data sets, to find out more about delegable data sets check out this post:

The Gallery is now set up to pull in all of the related items in the list from that list. The Gallery control will repeat each of its sections for as many items that are returned. You can customize the Gallery by pulling in different controls or text boxes into one of the repeating sections to customize the Gallery in whatever way you want. If you want to display item properties for the items pulled in you can select 'Fields' in the Gallery pane and select the value you would like for each control. 

This is effectively a UI to update the value in the text property of the control. If you click into a control and select the text property you will see that it has been updated to ThisItem.itemproperty

By knowing this you can use the item's properties to do some unique things such as navigate to the display or edit form of the item like I am doing for the 'Track' button that was added to the Gallery. 

That's it, hopefully you found this guide helpful, if you have any questions ask them in the comments or reach out on twitter @mslavieri


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