[Silverlight] limits that Silverlight applications can only be used under a specified domain name to protect your SL Program

Some behaviors in many industries in China, it is necessary to restrict the use of Silverlight applications only under the specified domain name. For this purpose, the close-up example is for reference only.

 

This is the result of normal execution on the current page:

 

This is the result that the same program does not run under the specified domain name ():

Implementation Method:

1. Add accessdeniedpage. XAML and add a constructor.

        public AccessDeniedPage(Uri uri)            : this()        {            this.DataContext = uri;        }

2. Set accessdeniedpage. XAML Foreground:

<Usercontrol X: class = "checkaccess. accessdeniedpage "xmlns =" http://schemas.microsoft.com/winfx/2006/xaml/presentation "xmlns: x =" http://schemas.microsoft.com/winfx/2006/xaml "xmlns: D =" http://schemas.microsoft.com/expression/blend/2008 "xmlns: MC =" http://schemas.openxmlformats.org/markup-compatibility/2006 "MC: ignorable =" D "D: designing Height = "300" D: designwidth = "400"> <grid background = "white" verticalalignment = "center" Height = "300"> <textblock text = "visit" horizontalalignment = "from the original page "center" verticalalignment = "TOP" fontsize = "29.333" margin =, 0, 0 "/> 
2. Add the URI field to the app class and modify application_startup:
        private void Application_Startup(object sender, StartupEventArgs e)        {            bool flag = false;            try            {                flag = HtmlPage.Document.DocumentUri.Host.ToLower() == uri.Host.ToLower();            }            catch { }            if (flag)                this.RootVisual = new MainPage();            else                this.RootVisual = new AccessDeniedPage(uri);        }
3. If your self-deployed xap and HTML are not in the same domain name, you need to set
<param name="enableHtmlAccess" value="true" />
Cause reference: http://msdn.microsoft.com/zh-cn/ff686925.aspx
Download slcheckaccess.zip