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Re: In beta2,all javascript event is blocked!!

Alex Little — Fri, 15 Aug 2008 14:28:04 GMT

Where do these two parameters go. Im not sure where to put them.

Re: Re: In beta2,all javascript access is blocked!!

nemiso — Wed, 18 Jun 2008 11:58:57 GMT

thank you for your concern. I often look around your site. you are really good teacher. ^^

have a good time.

Re: Re: In beta2,all javascript event is blocked!!

nemiso — Wed, 18 Jun 2008 11:48:20 GMT

Thank you. you are right. have a good day.

Re: In beta2,all javascript event is blocked!!

Sergey Volk MSFT — Sun, 15 Jun 2008 02:28:25 GMT

Hi,

I think I understand why you are having this problem. There are actually two parameters for allowing communication between cross-domain XAP file and host HTML page. Setting EnableHtmlAccess=true on object tag allows CLR (managed code) to invoke javascript methods / event handlers (so you can invoke HtmlPage.Window.Alert, etc). But there is one more parameter - ExternalCallersFromCrossDomain, which must be set if you want to allow javascript code to invoke methods in managed code. Try adding ExternalCallersFromCrossDomain='FullAccess' attribute to the root node of AppManifest.xaml file inside your XAP. This should fix your problem.

In cross-domain XAP scenarions, by default EnableHtmlAccess=false and ExternalCallersFromCrossDomain='NoAccess' (for security reasons).

Re: Re: In beta2,all javascript access is blocked!!

swildermuth — Sat, 14 Jun 2008 21:38:56 GMT

This does seem screwy. Can you do a test for me to make sure its not in your code? Do you have access to the DeepZoom composer? There is an option to make a sample Silverlight site (and it uses the mousewheel hookups to do mouse wheel zooming). If you create a quite DeepZoom example and see if that works (it does for me), it might point at what the real issue is and if it is, in fact, a bug.

Re: In beta2,all javascript access is blocked!!

nemiso — Sat, 14 Jun 2008 10:38:52 GMT

I use Object tag like this.

////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////

this is auto-generated code.

I tried a test in the local server.

I changed source param, like this.

<param name="source" value="http://othersite.com/MyProject.xap"/>

and I added some codes in my project.

Because of 'EnableHtmlAccess' param, 'HtmlPage.Window.Alert' or 'HtmlPage.Window.Confirm' methods work.

but still 'HtmlPage.Plugin.AttachEvent("onmousewheel", this.HandleMouseWheel);' Command doesn't work.

I can't get any event from 'HandleMouseWheel' Handler.

also, I cannot accept any event from 'WebClient' class. for example, 'OpenReadcompleted', 'DownloadStringCompleted', etc..

In addition, this's my Page.xaml.cs code.

        public Page()
        {
            InitializeComponent();

HtmlPage.Plugin.AttachEvent("DOMMouseScroll", this.HandleMouseWheel);
HtmlPage.Plugin.AttachEvent("onmousewheel", this.HandleMouseWheel);

            WebClient wc = new WebClient();
            wc.DownloadStringAsync(new Uri("{Some Path..}", UriKind.Relative));
            wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted);
        }

        private void HandleMouseWheel(object sender, HtmlEventArgs args)
        {
            HtmlPage.Window.Alert("Wheel?!!");
        }

        void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
                HtmlPage.Window.Alert("down?");
         }

Re: In beta2,all javascript access is blocked!!

swildermuth — Sat, 14 Jun 2008 08:55:44 GMT

How is the XAP file hosted? (e.g. Object tag, Silverlight.js, etc.)

In beta2,all javascript event is blocked!!

nemiso — Sat, 14 Jun 2008 01:10:48 GMT

I use many System.Windows.Browser namespace's class and method.

For example ( HtmlPage.Window.Alert), (HtmlPage.Plugin.AttachEvent), etc....

first, when I load a xap file on the server, it works quite well.

but when I load a xap file on other site,(using object tag) it doesn't work.

Is there any security issue??

In addition, WebClient Class also doesn't work.

I think all javascript access(including ajax) is blocked when I load a xap file on other site.

Is there any other way to use other site's xap file without such limitations.

I have a big problem.