ASP .NET Asynch Webservice problem

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Hi
I have a requirement in which i have to develop a page which runs a service on server calling through JavaScript. Now i also need to show updates about work being done(e.g Completed %).

Heres structure of my code.

C#

       [WebMethod (true)]
       //Below method takes around 5-10 minutes in execution
       public string[] GenerateXMLSiteMap()
       {
         SiteMapGenerator siteMapGen = new SiteMapGenerator();
         siteMapGen.SiteMapNodeAddedSuccessfully += new               SiteMapNodeAdded(siteMapGen_SiteMapNodeAddedSuccessfully);
           siteMapGen.GenerateSiteMap();

           return GetStats();
       }

void siteMapGen_SiteMapNodeAddedSuccessfully(string[] infos)
       {
           //CurrentPage = infos[0];
           Session["CurrentPage"] = infos[0];
           Session["PageScanned"] = infos[1];
           Session["LinkDepth"] = infos[2];
           Session["Time"] = infos[3];
       }

[WebMethod (true)]
       public string[] GetStats()
       {
           string[] stats = new string[4];
           if (Session["CurrentPage"] != null)
           {
               stats[0] = Session["LinkDepth"].ToString();
               stats[1] = Session["CurrentPage"].ToString();
               stats[2] = Session["PageScanned"].ToString();
               stats[3] = Session["Time"].ToString();
           }

           return stats;
       }

I am calling GetStats() method from clientside but it is never invoked. I figured its because we have called GenerateXMLSiteMap() which is still executing. Can anyone tell me how to get statics in this manner.

Thanks,
Dinesh

Posted 6-Aug-11 5:40am

dinesh_ahuja

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Abhinav S · Answer 1 · 2011-08-06T05:50:00

Solution 1

If you've just call 2 web methods asynchronously, then that is not a problem.

Can you post your client side code here?
Use a tool like Fiddler to see if you can see a call being invoked and a response being sent back.

Posted 6-Aug-11 5:50am

Abhinav S

Comments

dinesh_ahuja 6-Aug-11 12:51pm

$(function () {
callService();
});
function callService() {
sitemap.XMLSiteMapService.set_defaultSucceededCallback(OperationCompleted);
sitemap.XMLSiteMapService.set_defaultFailedCallback(onFailed);
sitemap.XMLSiteMapService.GenerateXMLSiteMap();
doTimer();
}

function OperationCompleted(result) {
var divComp = document.getElementById("divComplete");
divComp.style.visibility = "visible";
SetStats(result);
}

function onFailed() {
}

function GetStats() {
sitemap.XMLSiteMapService.GetStats(StatusSuccess, StatusFail);

}

function StatusSuccess(result) {
SetStats(result);
}

function SetStats(result) {
var currentPage = document.getElementById("lblCurrentPage");
if (currentPage != null) {
currentPage.innerHTML = result[1];
document.getElementById("lblDepth").innerHTML = result[0];
document.getElementById("lblPageScanned").innerHTML = result[2];
document.getElementById("lblTimePassed").innerHTML = result[3];
}
}

function StatusFail() {
}

var c = 0;
var t;
var timer_is_on = 0;
function timedCount() {
t = setTimeout("timedCount()", 15000);
GetStats();
}

function doTimer() {
if (!timer_is_on) {
timer_is_on = 1;
timedCount();
}
}

function stopCount() {
clearTimeout(t);
timer_is_on = 0;
}