在发布小程序更新的时候访问的总是原来的程序，猜想应该是缓存的原因。在网上查找方法
<div id="silverlightControlHost"> <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%"> <param name="source" value="ClientBin/ElecDemoSl.xap?<%=Guid.NewGuid().ToString() %>"/> <param name="onError" value="onSilverlightError" /> <param name="background" value="white" /> <param name="minRuntimeVersion" value="5.0.61118.0" /> <param name="autoUpgrade" value="true" /> <param name="enableGPUAcceleration" value="true" /> <a href="http://go.microsoft.com/fwlink/?LinkID=149156&v=5.0.61118.0" style="text-decoration:none"> <img src="http://go.microsoft.com/fwlink/?LinkId=161376" 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>
在<param name="source" value="ClientBin/ElecDemoSl.xap?<%=Guid.NewGuid().ToString() %>"/>这行中添加绿色的代码就可以了。
以下方法通过网上查找
另一个解决方案,我更喜欢甚至包括检查XAP创建日期,并附加参数name =“Source”来源
<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%"> <% string strSourceFile = @"ClientBin/SilverlightApplication2.xap"; string param; if (System.Diagnostics.Debugger.IsAttached) param = "<param name=\"source\" value=\"" + strSourceFile + "\" />"; else { string xappath = HttpContext.Current.Server.MapPath(@"") + @"\" + strSourceFile; DateTime xapCreationDate = System.IO.File.GetLastWriteTime(xappath); param = "<param name=\"source\" value=\"" + strSourceFile + "?ignore=" + xapCreationDate.ToString() + "\" />"; } Response.Write(param); %> <param name="onError" value="onSilverlightError" />
参考文章
http://www.codeproject.com/Articles/143414/Prevent-your-Silverlight-XAP-File-from-Caching-in
http://kevinfan.blog.51cto.com/1037293/933181/
原文：http://www.cnblogs.com/ZJ199012/p/3552416.html