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 75:         string query = "select * from basket where guid=@a";
Line 76:         SqlCommand scon = new SqlCommand(query, conn);
Line 77:         scon.Parameters.AddWithValue("@a", Request.Cookies["shoppingcart"].Value.ToString());
Line 78:         SqlDataReader dr_basket = scon.ExecuteReader();
Line 79:         dr_basket.Read();

Source File: d:\hostingspaces\iranacenter.com\httpdocs\MasterPage.master.cs    Line: 77

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   MasterPage.Page_Load(Object sender, EventArgs e) in d:\hostingspaces\iranacenter.com\httpdocs\MasterPage.master.cs:77
   System.Web.UI.Control.OnLoad(EventArgs e) +107
   System.Web.UI.Control.LoadRecursive() +89
   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:4.8.4700.0