Type 'System.Web.UI.UpdatePanel' does not have a public property named 'RelatedProducts2NavBarDOLTAK2024'.

at System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding) at System.Web.UI.TemplateParser.Parse() at System.Web.UI.TemplateParser.ParseTemplateInternal(String content, VirtualPath virtualPath, Boolean ignoreFilter) at System.Web.UI.TemplateParser.ParseControl(String content, VirtualPath virtualPath, Boolean ignoreFilter) at System.Web.UI.TemplateControl.ParseControl(String content) at WebCtrlLib.TemplateCtrl.OnInit(EventArgs e) in C:\Visual Studio Projects\WebCtrlLib5\TemplateCtrl.cs:line 101