Update boolean field in ItemAdding receiver

Question

I want to update a SP boolean column on an ItemAdding event receiver. I want to set the "Hide physical URLs from search" column (PublishingIsFurlPage) to Yes.

My code look like this :

  public override void ItemAdding(SPItemEventProperties properties)
  {
     EventFiringEnabled = false;

     properties.AfterProperties["PublishingIsFurlPage"] = "1";

     EventFiringEnabled = true;

     base.ItemAdding(properties);
  }

It does nothing event if I used "True", "TRUE", true instead of "1".

Anyone have an idea how to set this boolean column ?

Thanks

Answer 1

Using AfterProperties is generally not the approach I go with, since it's often buggy/not behaving the way we expect (see for instance Working with BeforeProperties and AfterProperties on SPItemEventReceiver).

First thing, why do you use ItemAdding? In your case, wouldn't ItemAdded -in an asynchronous ER- be more suited?

In an ItemAdded, I'd then have no problem to run this code:

base.EventFiringEnabled = false;
SPListItem item = properties.ListItem;
item["PublishingIsFurlPage"] = true;
item.SystemUpdate();
base.EventFiringEnabled = true;

If you want to continue on with ItemAdding, here are two things to check:

1. For a Yes/No field, assign the boolean true, not the string "1", "True" or anything else.
2. Be sure you use the internal name of the field.

Answer 2

That's the solution :

using (SPWeb web = properties.OpenWeb())
                  {
                     bool oldUnsafeUpdates = web.AllowUnsafeUpdates;
                     web.AllowUnsafeUpdates = true;

                     SPList list = web.Lists.TryGetList("Pages");

                     SPListItem item = list.GetItemById(properties.ListItemId);

                     item["PublishingIsFurlPage"] = true;
                     item.SystemUpdate(false);

                     web.AllowUnsafeUpdates = false;
                  }

Edit Work when adding one document. The second one give me the error The file Pages/z.aspx has been modified by SHAREPOINT\system

Damn