Application crashing on GPRS overallDatasize.

[ash_21]

Hi friends,
I am doing an application where I am sending data to the server till IssueHTTPPostL, my application is working properly but after that it is crashing on OverallDatasize function. Here is my code for IssueHTTPPostL & overalldatasize.

	
		SetupConnectionL();
	
		// Parse string to URI
		TUriParser8 uri;
		uri.Parse(aUri);
	
		// Copy data to be posted into member variable; iPostData is used later in
		// methods inherited from MHTTPDataSupplier.
		delete iPostData;
		iPostData = aBody.AllocL();
	
	//code checking for number of active connections.
	TBool CheckactiveConn = EFalse;
	CheckactiveConn = AnyActiveConnectionsL();
		// Get request method string for HTTP POST
		RStringF method = iSession.StringPool().StringF(HTTP::EPOST,
			RHTTPSession::GetTable());
		
		// Open transaction with previous method and parsed uri. This class will
		// receive transaction events in MHFRunL and MHFRunError.

	        iTransaction = iSession.OpenTransactionL(uri, *this, method);

		// content type.
		RHTTPHeaders hdr = iTransaction.Request().GetHeaderCollection();
		SetHeaderL(hdr, HTTP::EUserAgent, KUserAgent);
		SetHeaderL(hdr, HTTP::EAccept, KAccept);
		SetHeaderL(hdr, HTTP::EContentType, aContentType);

		// Set this class as an data supplier. Inherited MHTTPDataSupplier methods
		// are called when framework needs to send body data.
		MHTTPDataSupplier* dataSupplier = this;
		iTransaction.Request().SetBody(*dataSupplier);

		// Submit the transaction. After this the framework will give transaction
		// events via MHFRunL and MHFRunError.
		iTransaction.SubmitL();

		iRunning = ETrue;
		_LIT(KConnecting,"Connecting...");
		iObserver.ClientEvent(KConnecting);

TInt CGPRSEngine::OverallDataSize()
	{
		if(iPostData)
		{
			return iPostData->Length();
		}
		else
		{
			return KErrNotFound ;
		}
	}

I have used these two functions. If anybody knows why immediately after completion of IssueHTTPPostL control is coming to Overalldatasize.
Thanks in advance.
Regards,

[ash_21]

Resolved the error.