RER: 'ChangedItemProperties' not working on Document Library

[rbarten]

Category

• Question
• Typo
• Bug
• Additional article idea

Expected or Desired Behavior

When someone is using the 'Copy To' functionality. Also all metadata of the document is copied. We want to prevent this by clearing out particular (custom) columns with an synchronous ItemAdding event receiver. When adding values to the 'ChangedItemProperties' Dictionary of SPRemoteEventResult we would expect that the values of those columns are updated within a ItemAdding Event on a Document Library.

Observed Behavior

This won't work in SharePoint Online, nothing happens when setting these values. Sample code:

        SPRemoteEventResult result = new SPRemoteEventResult();

        if(properties.EventType == SPRemoteEventType.ItemAdding)
        {
            result.ChangedItemProperties.Add("cusField", "test");
            result.ChangedItemProperties.Add("Title", "test title");
            result.Status = SPRemoteEventServiceStatus.Continue;
        }

        return result;

Steps to Reproduce

1. Create an ItemAdding EventReceiver and add values to the ChangedItemProperties.
2. Add an ItemAdding eventreceiver to a Document Library using PowerShell (Not a Provider hosted app solution)
3. Use the Copy To functionality.
4. Event Receiver is triggered, but values are not updated.

If this is not supported. What other options are there to check if Copy To was used? Update the values within a ItemAdded async RER?

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[rbarten]

@andrewconnell : Why does this issue already have the tag 'status:anwered'?

[andrewconnell]

@rbarten that was a mistake on my part... my bad

[mathildo]

We have the exact same issue. This was working a month ago. But is not working anymore...

[allanped]

@andrewconnell: Are there any news on this issue? It is breaking functionality for our 200 customers running our system. This was working 4 weeks ago...

[andrewconnell]

@allanped can you post code that was working and is now no longer working? The OP asked a question, but it wasn't indicated that something has recently changed...

[mathildo]

We did some further testing on this. We found that it is working when you use the 'Copy to' function between different libraries. Here the only case where it is currently not working is when you use the ‘Copy to’ function to the same library or a folder within that library. @rbarten can you confirm this?

@andrewconnell we have no test cases that confirms that this specific scenario has been working. We basically use the same code as @rbarten posted. Furthermore we had the ParserDisabled = true for the list which we believe was working before. Now it makes no difference if it is true/false. Hope this helps?

[rbarten]

@mathildo @andrewconnell I also have the issue when I'm copying files to another document library within the same site.
Document in Library X with Title set to 'Test'. ItemAdding RER is attached to this library.
Library X: Copy to Library Y => Title stays 'Test'
Library Y: Copy to Library X => Title stays 'Test', would expect 'test title'. ItemAdding event is triggered, but ChangedItemProperties is ignored.

Also tried enabling 'ParserDisabled' on the list, same results.

So how can we prevent (or change) Metadata when using this 'Copy To' function?

[Pieter-Veenstra]

@andrewconnell, one of my clients is reporting this issue. What is the current status of this? Is this actively being worked on?