silverlight自定义升级路径

vs自动生成Silverlight加载页面，安装和升级都会自动连接到微软网站上下载更新。

但一些企业级应用中，客户端不能访问外网，就导致Silverlight技术应用有缺陷。

 

一般的解决方案是，将silverlight安装程序上传到服务器上，在Html中添加该地址，代码如下：

<form id="form1" runat="server" style="height:100%">    <div id="silverlightControlHost">        <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%">  <param name="source" value="ClientBin/Map.xap"/>  <param name="onError" value="onSilverlightError" />  <param name="background" value="white" />  <param name="minRuntimeVersion" value="4.0.50826.0" />  <param name="autoUpgrade" value="true" />  <a href="http://localhost/Silverlight.exe" style="text-decoration:none">   <img src="http://localhost/SLMedallion_CHS.png" alt="获取 Microsoft Silverlight" style="border-style:none"/>  </a>    </object><iframe id="_sl_historyFrame" style="visibility:hidden;height:0px;width:0px;border:0px"></iframe></div>    </form>

此方案对于没有安装过的客户端有效，但如果客户端已经安装过Silverlight，而开发的Silverlight版本较高，即minRuntimeVersion比客户端的版本高，则此时客户端仍会自动连接到微软网站去升级。

 

最好的解决方案应该是使用silverlight.js去加载Silverlight，代码如下： 

<script type="text/javascript" src="Silverlight.js"></script>     <script type="text/javascript">        window.onload = function() {            silverlightControlHost.innerHTML = embedSilverlight(null, "sl", "");        }        function embedSilverlight(parentElement, pluginId, userContext) {           var getSilverlightMethodCall = "http://localhost/Silverlight.exe"        var installImageUrl = "http://localhost/SLMedallion_CHS.png";        var imageAltText = "Get Microsoft Silverlight";        var altHtml =             "<a href='{1}' style='text-decoration: none;'>" +            "<img src='{2}' alt='{3}' " +            "style='border-style: none'/></a>";        altHtml = altHtml.replace('{1}', getSilverlightMethodCall);        altHtml = altHtml.replace('{2}', installImageUrl);        altHtml = altHtml.replace('{3}', imageAltText);            return Silverlight.createObjectEx({                        source: "ClientBin/Map.xap",                        id: "sl",                         properties: {                            width: "100%",                             height: "100%",                            background: "white",                             alt: altHtml,                            version: "5.0.61118.0",    autoUpgrade:false },                        events: {                            onError: onSLError,                             onLoad: onSLLoad },enableGPUAcceleration: false                    });        }        function onSLLoad(plugIn, userContext, sender) {            window.status +=                plugIn.id + " loaded into " + userContext + ". ";        }        function onSLError(sender, args) {            // Display error message.alert(args);        }    </script><form id="form1" runat="server" style="height: 100%">    <div id="silverlightControlHost"></div>    <iframe id="_sl_historyFrame" style="visibility:hidden;height:0px;width:0px;border:0px"></iframe>    </form>

 

要注意的是autoUpgrade要设置为false.

 

解决这个问题搞了好久，希望对你有用。