Where to put .OpenSAPConnection

Question

I am developing an asp.net application that loads information from our CRM system and presents it to the user.
I want set up the connection and load the data as the page is being set up.
The trouble is, if I put the .OpenSAPConnection call in the Page_Load event, it seems to start the entire page even cycle all over again after the load even completes ...
ex. if I put it in the Page_Load event, as soon as this event completes the Page_Init is fires again, followed by the Page_Load event (again) ... resulting in an infiite loop.   I suspect this is the result of trying to write the connection to the viewstate before it is create.
Where can I put the connection given that I want load the data into the page controls before the rendering event fires???
-Sheldon

Answer 1

Hi Sheldon,
after reading your code, a few thoughts come to mind
is there any specific reason you are explicitly calling OpenSAPConnection ?
as per the class doculentation it is used internally, it is sufficient for you to get the connection :
proxy.Connection =  SAP.Connector.SAPLoginProvider.GetSAPConnection(this);
with respect,
amit
http://help.sap.com/saphelp_nw04/helpdata/en/8f/3de39b752d284b98b25bad8c8d6b90/content.htm
when you open a connection, it should be assigned to a proxy class to be able to consumed
also once you are done with the connection a close should be incorporated
the connection is to be specific to a proxy, and it is a good practice when you close it when you do not need it
i use connection pooling as well :
e.g.
SAP.Connector.Connection con2SAP;
con2SAP = myConnector.conEstablishConnection(strConnection);
if (con2SAP != null)
SAPProxyUserDetails prxUserProxy = new SAPProxyUserDetails();
BAPIRETURN brtUserDetails = new BAPIRETURN();
ZUSERLIST zpsUserList = new ZUSERLIST();
ZUSERLISTTable zptUserList = new ZUSERLISTTable();
try
con2SAP.Open();
prxUserProxy.Connection = con2SAP;
prxUserProxy.Z_Portal_Get_User_Details(strUserDomain, strUserName, out strRetDomain,out strExUser, out strFullName, out brtUserDetails,out strRetUserName,out strUserType, out strVendorId, ref zptUserList);
// check if details were retrieved and process results
catch (Exception ex)
string strError;
strError = ex.Message.Trim();
finally
if (con2SAP.IsOpen)
// close connection
     con2SAP.Close();
where :
public SAP.Connector.Connection conEstablishConnection(string strConnection)
SAP.Connector.Connection conReturn;
conReturn = null;
if(strConnection.Trim() !="")
conReturn = SAP.Connector.SAPConnectionPool.GetConnectionFromPool(strConnection);
return conReturn;
public void conReturnConnection(SAP.Connector.Connection con2Return)
if(con2Return !=null)
con2Return.PrepareForPooling();
SAP.Connector.SAPConnectionPool.ReturnConnection(con2Return);
con2Return = null;