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Showing posts from February, 2013

UpdatePanel not working in a migrated web application

I faced an issue with UpdatePanel where its always causing a full page postback instead of an async one. The project is migrated from Visual Studio 2003 to 2005. When automatically migrate a VS 2003 Web Project to VS 2005 ,   <xhtmlConformance mode="Legacy"/>  will be there in web.config file. Remove that line from web.config. Or change that to <xhtmlConformance mode=" Transitional " /> Check whether issue is resolved. I was getting 'Sys' is undefined error at this point of time. So I added following configuration in web.config in system.web section. <httpHandlers>       <remove verb="*" path="*.asmx"/>       <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory"/>       <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions,