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HttpContext in Item EventREciver is null.

Posted on 2010-08-17
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Last Modified: 2012-05-10
hi I  am writing ITemEventReceiver for a document library where I have to use session variable that will be passede acroos web part and the other events.
please find the code .
,
the ctx.current is null.
how can i get the session in Event receivers?
thanks for your help.
Azra
class HandleEventClass : SPItemEventReceiver 
        /* Inharitance of SPItemEventReceiver class */
    {
             

        #region Global_Declarations

        
       
        private HttpContext ctx;
        
        #endregion Global_Declarations

        #region Overidable Events

        public HandleEventClass() {


            ctx = HttpContext.Current;
            
        }

public override void ItemAdding(SPItemEventProperties properties)
        {  
            
            base.ItemAdding(properties);

            if (ctx.Session["isRestore"] == null)
                ctx.Session["isRestore"] = "0";
            flag = true;
        }

}

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Question by:callazra
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Expert Comment

by:vikas413
ID: 33461317
Hi,

it's by design dear, you can not have http context available for item event receivers.

read this post to understand it fully

http://blogs.msdn.com/b/brianwilson/archive/2007/03/05/part-1-event-handlers-everything-you-need-to-know-about-microsoft-office-sharepoint-portal-server-moss-event-handlers.aspx

it's a series, so that you will know inside out how event handler works in SharePoint.

Regards,
Vikas Patel.
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Author Comment

by:callazra
ID: 33461362
is there a way to store my session variable or something like that?
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LVL 6

Expert Comment

by:vikas413
ID: 33461853
Use static collection along with logged in user which you can get from SPContext object and remove it timely by using some logic

hope this will give you some insight, it's not compete but workaround. ;)

if you have farm environment with more then one WFE's then this will not work at that time you need to use persistence storage to go ahead.
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Accepted Solution

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callazra earned 0 total points
ID: 33462239
got rid of the issue , by using http.runtim.cache
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