OnSourceDownloadProgressChanged not called

Question

Hey guys,

I'm trying to create my silverlight object inside a htm-page via javascript (use createObject from Silverlight.js). Everything works fine except one point: the onSourceDownloadProgressChanged-event is not fired so that my splashscreen stays the same throughout the whole loading process. What am I doing wrong (OnBodyLoad is called - as the name says - when html-body is loaded)?

 

var xapUrl = "http://myDomain/myXAP.xap";
var loadingUrl = "http://myDomain/splash.xaml";
var minRuntime = "4.0.50524.0";

function OnBodyLoad() {
    var silverlightHost;
    var silverlightObject;
    var historyFrame;

    silverlightHost = document.getElementById("silverlightControlHost");

    silverlightObject = Silverlight.createObject(
            xapUrl,
            silverlightHost,
            "Main",
            {
                width: "940",
                height: "350",
                windowless: "true",
                MaxFrameRate: "60",
                background: "white",
                minRuntimeVersion: minRuntime,
                autoUpgrade: "true",
                SplashScreenSource: loadingUrl,
                enableHtmlAccess: "true",
                AllowHtmlPopupwindow: "true",
                alt: altHtml
            },
            {
                onError: "onSilverlightError",
                onSourceDownloadProgressChanged: "DownloadProgress"
            },
            null, null)

    historyFrame = document.createElement("iframe");
    historyFrame.id = "_sl_historyFrame";
    historyFrame.style.visibility = "hidden";
    historyFrame.style.height = "0px";
    historyFrame.style.width = "0px";
    historyFrame.style.border = "0px";
    silverlightHost.appendChild(historyFrame);
}

function DownloadProgress(sender, eventArgs) {
    sender.findName("txtLoading").Text = "Anwendung zu " + Math.round(eventArgs.progress * 100) + "% geladen";
    sender.findName("progressBarScale").ScaleX = eventArgs.progress;
}

  

Answer 1

 No one out there who can help me?

Answer 2

Got it by myself:

Never host XAP and website within different domains cause obviously download progress ist not registered crossdomain... 

Answer 3

Hi meykih,

I am also facing the same issue. Can you please elaborate the resolution you got? Have you changed any javascript code?

~ Ravi

Answer 4

As I already wrote it is a cross domain problem for which I found no solution except hosting XAP and website under the same domain.

Answer 5

Hi Maike,

Thanks for quick responce .

Actually my XAP and website was hosted in the same domain, still I was facing the issue due to different reason. I was facing this issue only on firefox browser and not on IE. I would like to share resolution with you, as it may help you in future.

I was creating silverlight object as below -

Silverlight.createObjectEx(
                    {
                        source: "ClientBin/NmsConsole.xap?rev=1",
                        parentElement: document.getElementById('silverlightControlHost'),
                        id: "silverlightControl",
                        properties:
                        {
                            data: "data:application/x-silverlight-2,",
                            type: "application/x-silverlight-2",
                            width: "0%",
                            height: "0%",
                            background: "LightGray",
                            version: "4.0.50524.0",
                            alt: altHtml,                            
                            autoUpgrade: true
                        },
                        events:
                        {
                            onError: onSilverlightError,
                            onSourceDownloadProgressChanged: onSourceDownloadProgressChanged,
                            onLoad: onSilverlightControlLoaded
                        }
                    });

The error in above code is line:

autoUpgrade: true

I am able to resolve issue just by adding double quotes as:

autoUpgrade: "true"

Thank you very much for your help and trigger to my mind.

~ Ravi