Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 288:
Line 289:        //des_str += "<li class='top topclear'><a id='menu_home' href='/' class='top_link  topclear'><span><img border='0' style='margin-right:5px;margin-left:5px;margin-top:15px;' src='/image/home.png'></span></a></li>";
Line 290:        string lang = HttpContext.Current.Session["Culture"].ToString();
Line 291:        DataTable dt_menus = SelectWithNestedId(0, just_users, userid);
Line 292:        for (int i = 0; i < dt_menus.Rows.Count; i++)

Source File: c:\wwwroot\moboclick\moboclick.ir\wwwroot\App_Code\menu\Menu.cs    Line: 290

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   CmsMenu.BuildAccordionTreeNew(String& des_str, Int32 just_users, Int32 userid) in c:\wwwroot\moboclick\moboclick.ir\wwwroot\App_Code\menu\Menu.cs:290
   UserControls_MenuBox.Page_Load(Object sender, EventArgs e) in c:\wwwroot\moboclick\moboclick.ir\wwwroot\Usercontrol\MenuBox.ascx.cs:29
   System.Web.UI.Control.OnLoad(EventArgs e) +107
   System.Web.UI.Control.LoadRecursive() +89
   System.Web.UI.Control.LoadRecursive() +184
   System.Web.UI.Control.LoadRecursive() +184
   System.Web.UI.Control.LoadRecursive() +184
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1532


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0