BeforeProperties/AfterProperties in Event Receivers – I always forget this

 

I always forget this and when I come to create a new SharePoint Event Receiver I wonder why the BeforeProperties or AfterProperties are sometimes not populated.

The Synergy MOSS blog has a really good post describing exactly what properties will contain a hash table and which will be empty depending on which list type the event is coming from and in which method (e.g. ItemAdding).

Be sure to check out the post here –

http://www.synergyonline.com/blog/blog-moss/Lists/Posts/Post.aspx?ID=25

Here are the tables from the post:

These are the values of the properties in List events:

List BeforeProperties AfterProperties properties.ListItem
ItemAdding No Value No Value Null
ItemAdded No Value No Value New Value
ItemUpdating Original Value Changed Value Original Value
ItemUpdated Original Value Changed Value Changed Value
ItemDeleting No Value No Value Original Value
ItemDeleted No Value No Value Null

And here are the properties available in Library events:

Library BeforeProperties AfterProperties properties.ListItem
ItemAdding No Value No Value Null
ItemAdded No Value No Value New Value
ItemUpdating Original Value Changed Value Original Value
ItemUpdated Original Value Changed Value Changed Value
ItemDeleting No Value No Value Original Value
ItemDeleted No Value No Value Null

Hope this helps! :-)

Posted on June 8, 2010 by Alex in SharePoint, SharePoint 2007, SharePoint Development

Tags: , , , , ,

11 Responses to BeforeProperties/AfterProperties in Event Receivers – I always forget this

  1.  

    I’ve checked for Sharepoint 2010

    For list:
    ItemUpdating: No Values No Values Original Values.

    ItemAdding – useless event. There no way to check the values in ItemAdding :(

    from Alexey May 25, 2011 at 5:30 pm
  2.  
  3.  

    Alexey and Alex Clark you’re wrong.

    http://blog.ray1.net/2011/06/getting-beforeproperties-and.html

    from Ray Proffitt August 17, 2011 at 7:17 am

    • Thanks for this – never knew you could set an event receiver as synchronous – oh well every day is a school day!

      from Alex August 21, 2011 at 1:18 pm
       
  4.  

    hi guys, i have a problem and i can´t find a solution for this…maybe you can help me.
    my customer wants use windows explorer view to drag and drop SPListItems, at this point everything is OK, but he wants original values of “Modified” and “ModifiedBy” fields (in source list) be the same values in destiny list. the problem is when you are in windows explorer view and you do a dragNdrop action…modifiedBy field has the user logged in windows.
    i have an eventReceiver for that destiny list to change this values overwritting “itemAdding” and “itemAdded” events and my code looks like :
    if (listItem["Author"] != null)
    { listItem["Editor"] = listItem["Author"];
    listItem.update();}

    when listItem.update is running it through an exception saying windows logged in user has modified that item.

    any ideas??? thank you very much

    from josete October 19, 2011 at 12:22 pm
  5.  

    Also I believe you can get the properties for AfterProperties on the adding event for a list item but not a Document Library.

    from Richard Weston (@rixabix) March 14, 2012 at 2:24 pm

    • Hi Richard,

      Yes that’s correct you can get the AfterProperties on ItemAdding but only for list items, quite annoying really as often I have needed this when working with a doc lib.

      Thanks for the feedback.

      Cheers

      Alex

      from Alex March 16, 2012 at 6:35 am
       
  6.  

    By the way – great post. I use it as a reference often :)

    from Richard Weston (@rixabix) March 14, 2012 at 2:26 pm
  7.  

    Hi,

    Is it me or the table are the same ? This was not the case in the past (as we can see in blog that stole your content long time ago…).
    Did you change the table to reflect the behavior or Synchronous Event ?

    Edgar

    from Edgar Maucourant (NFTInside) July 7, 2012 at 8:07 pm
  8.  

    Thanks alex… Helped me a lot…

    from Suresh Pydi July 12, 2012 at 1:30 pm
  9.  

    Thanks for the overview, that helped me out.
    Cheers!

    from phq December 7, 2012 at 10:01 am

leave your comment