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New Message on BDOTNET
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From: VBGURU
Message 7 in Discussion
www.aravinda.in www.code.aravinda.in www.fun.aravinda.in www.kedge.aravinda.in
www.live.aravinda.in www.search.aravinda.in just checking have u used,
WebMethodAttribute.EnableSession Property Property Valuetrue if session
state is enabled for an XML Web service method. The default is false.
type=text/Javascript> var ExpCollDivStr = ExpCollDivStr; ExpCollDivStr =
ExpCollDivStr + "ctl00_LibFrame_ctl10194d871,"; var ExpCollImgStr =
ExpCollImgStr; ExpCollImgStr = ExpCollImgStr + "ctl00_LibFrame_ctl10img,";
</SCRIPT> Remarks
In order to store session state in the ASP.NET HttpSessionState object, the XML
Web service must inherit from WebService and a WebMethodAttribute applied to
the XML Web service method, setting the EnableSession property to true. If
session state is not needed for an XML Web service method, then disabling it
may improve performance.
An XML Web service client is uniquely identified by an HTTP cookie returned by
an XML Web service. In order for an XML Web service to maintain session state
for a client, the client must persist the cookie. Clients can receive the HTTP
cookie by creating a new instance of CookieContainer and assigning that to the
CookieContainer property of the proxy class before calling the XML Web service
method. If you need to maintain session state beyond when the proxy class
instance goes out of scope, the client must persist the HTTP cookie between
calls to the XML Web service. For instance, a Web Forms client can persist the
HTTP cookie by saving the CookieContainer in its own session state. Because not
all XML Web services use session state and thus clients are not always required
to use the CookieContainer property of a client proxy, the documentation for
the XML Web service should state whether session state is used.
type=text/Javascript> var ExpCollDivStr = ExpCollDivStr; ExpCollDivStr =
ExpCollDivStr + "ctl00_LibFrame_ctl17eefb9b0,"; var ExpCollImgStr =
ExpCollImgStr; ExpCollImgStr = ExpCollImgStr + "ctl00_LibFrame_ctl17img,";
</SCRIPT> Example
The example below uses session state to determine how many times a particular
session accesses the XML Web service method SessionHitCounter
<%@ WebService Language="C#" Class="Util" %>
using System.Web.Services;
public class Util: WebService {
[ WebMethod(Description="Per session Hit Counter",EnableSession=true)]
public int SessionHitCounter() {
if (Session["HitCounter"] == null) {
Session["HitCounter"] = 1;
}
else {
Session["HitCounter"] = ((int) Session["HitCounter"]) + 1;
}
return ((int) Session["HitCounter"]);
}
}
-aravinda
www.aravinda.in www.code.aravinda.in www.fun.aravinda.in www.kedge.aravinda.in
www.live.aravinda.in www.search.aravinda.in
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