My Sharepoint item adding, item added, item updating,item updated event handler is firing twice

Question

Hi,

Iam using custom permissions/groups for the lists in my site.

In the receivers i am using hashtable with key as list name and value as group name.like below

public override void ItemAdding(SPItemEventProperties properties)
       {

Hashtable ht = new Hashtable();
           ht["Students"] = "Student Members";
           ht["Employee"] = "Employee Members";

foreach (DictionaryEntry de in ht)
           {
               if (properties.ListTitle == de.Key.ToString())
               {
                   //logic for email
               }

}

}

Not sure why my event handler is executing twice..Can some please help on this issue?

Thanks

Usha

Answer 1

That's probably because the event receivers are getting attached to every list other than the required one. See if this link helps - http://blog.krichie.com/2011/05/18/eventreceiver-firing-twice-dont-make-this-bone-headed-mistake/

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Answer 2

There seems to be TWO eventreceivers attached to your list.

check it by using the powershell script below:

$spWeb = Get-SPWeb -Identity http://server 
$spList = $spWeb.Lists["My List Name"] 
$spList.EventReceivers | Select Name,Assembly,Type

you may also use SharePoint Manager http://spm.codeplex.com/downloads/get/526736

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----------------------- Sharepoint Newbie