I have a canvas app with the datasource a sharepoint list. The list has several columns configured as "Choice" and on the form I've set the Items control for each to a list of choices. This works fine and the entry is saved back to the Sharepoint List when I submit the form. But I have one column that I cannot save back to the list. In SP I have tried various types, choice, person and text. On the form, I want this to be a dropdown people picker, and the Items control contains this: SortByColumns(Office365Groups.ListGroupMembers("GroupID",{'$top':999}).value,"displayName",Ascending).
there are about 700 users in the list and this part works perfectly, but when I make a selection and submit the form, no data is saved back to the list. The other fields are populated but this one is empty. I believe I need to modify the Update Control on the datacard associated with this column. I've found various solutions online but they all throw errors. .The original text that's in the Update control is Datacard#.selected. This doesn't throw any error but also doesn't save the data back to SP. If I display the selected name from this dropdown in a label somewhere on the form, it works so I know the name is actually being selected properly. Would appreciate any suggestions.
