SharePoint itemDeleting evert is not working

I have a site in SharePoint and I want to custom delete from a list. So, I'm creating the

 public class ListItemEventReceiver : SPItemEventReceiver
 {
 public override void ItemDeleting(SPItemEventProperties properties)
        {
            if (properties.ListTitle.Equals("Projects List"))
            {
               Projects pr = new Projects();
   开发者_JAVA技巧            string projectName = properties.ListItem["Project Name"].ToString();
               pr.DeleteProject(projectName);
            }
         }
}

Where 'Projects' class has 'DeleteProject' method who deletes the item. But it's doing nothing :( I mention that everything it's ok in Feature.xml

Where am I wrong?

Edit (from 'answer'):

1. Yes, I've tried this:

   properties.ErrorMessage = "projectName :" + projectName;
   properties.Cancel = true; 
   

   in if clause and the event it's firing and displays the project name corectly.

2. I'm the farm administrator, and site administrator with full control over this site.

3. DeleteProject method it's right, because I've tried it in some other application (c#) and it's works fine.

A couple of things to check:

• Is your list item reciever connected to the list, so that it fires?
• Does the user that causes the trigger to fire have the the right to delete items?
• Is there any programming error in DeleteProject?

Try putting in some logging to see how far it is running.

Edit

Could the problem be here:

           string projectName = properties.ListItem["Project Name"].ToString(); 

Is the list item called "Project Name" with a space in the name?

Edit 2

From your comments, the combination of authentication and connection string means that it is the security context of the logged on user that is being used against the database. Check the rights of your user.

If event is firing and the only method pr.DeleteProject(projectName); is not working properly then it is difficult to guess what is wrong. If it is not confidential, please post your code and then I shall be in better position to identify what is wrong.

By the way, are you calling .Update() Method on list?

Please check out this link http://msdn.microsoft.com/en-us/library/ms431920.aspx

One more thing to care about is Itemed and Iteming events. It is better to use Before or After properties as appropriate in case of Item*ing events.

Regards,

Azher Iqbal