Why does my Event Receiver (sandboxed) not work on Sharepoint Online, but works perfect on premise

Question

using System;
using System.Security.Permissions;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Security;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.Workflow;

namespace Change_Title_Event.Change_Title
{
    /// <summary>
    /// List Item Events
    /// </summary>
    public class Change_Title : SPItemEventReceiver
    {
       /// <summary>
       /// An item is being added.
       /// </summary>
       public override void ItemAdding(SPItemEventProperties properties)
       {
           properties.AfterProperties["Title"] = "Kevin: Changed by event receiver at" + DateTime.Now.TimeOfDay.ToString();
           base.ItemAdding(properties);
       }


    }
}

Where simple example, which works perfect on my local Sharepoint 2010. It is sandboxed.

But when I package this solution, it do not work on Sharepoint Online. I does not give any Errors either.

I think I am doing something wrong, something simple, but I can't simply find anything on Google about it.

Here is another who asks on the MSDN forum, but gets a very wierd reply, that I do not understand. http://community.office365.com/en-us/forums/153/t/48868.aspx

Answer 1

It is because you have to activate two times.

Both in the solution page and the you have to go to the Feature page and activate the feature.

// I was confused because normally you only have to activate once.

Answer 2

It is because you have to activate two times.

Both in the solution page and the you have to go to the Feature page and activate the feature.

check this post: Why does my Event Receiver (sandboxed) not work on Sharepoint Online, but works perfect on premise

http://community.office365.com/en-us/forums/154/t/60731.aspx

Answer 3

Sandbox solution should be activated first.

Then there must be one of many Features part of the solution referencing objects, events, etc. contained in the solution. Activating this feature will deliver all items as specified in it.

Answer 4

Sandbox solutions has been deprecated using custom code. Please check the below link http://blogs.msdn.com/b/sharepointdev/archive/2014/01/14/deprecation-of-custom-code-in-sandboxed-solutions.aspx

May be that is reason your event receiver is not working.