Microsoft List template Asset Manager Column type "Thumbnail"

Chi-Lien Lee 

2 things.

1) It seems that the fix is in for adding an image to the Device Photo column. I had a previously "broken" MS List using the Asset Manager template that now allows uploading a photo - and a new List created today is also working for uploading to the Device Photo column.

2) What is still not fixed is the Gallery view and the display of the device's photo. But I believe I have found the fix.  In the JSON code for the Gallery view change this line as follows:

"src": "=if([$DevicePhoto] == '', '', [$DevicePhoto])",

to

"src": "=if([$DevicePhoto] == '', '', [$DevicePhoto.serverRelativeUrl])",

I tracked down the available properties on an image field from this https://docs.microsoft.com/en-us/sharepoint/dev/declarative-customization/column-formatting#code-try-44:~:text=The%20image%20field%20object%20has%20the%20following%20properties%20(with%20example%20values)%3A.

Important to note - case matters - so "ServerRelativeURL" will not work.

The image field object has the following properties (with example values):
{
  "fileName": "image.png",
  "id": "6bb1d843-0633-4c9a-9a16-90bc5abd1d8e",
  "serverRelativeUrl": "/teams/Discovery/SiteAssets/Lists/ad6ed939-0db2-4d85-8a39-8f3497f41eee/image.png",
  "serverUrl": "https://contoso.sharepoint.com"
}