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 73:             con.conn.Close();
Line 74: 
Line 75:             dlTop.DataSource = ManageSQLData.ReturnDataTable(string.Format("Select DISTINCT AltKategori,Kategori,Marka from Urunler where Marka='{0}' AND Kategori='{1}' ", Session["marka"].ToString(), Session["cat"].ToString()));
Line 76:             dlTop.DataBind();
Line 77:         }

Source File: c:\inetpub\vhosts\otoparcaevi.com\httpdocs\urun_detay.aspx.cs    Line: 75

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   urun_detay.Page_Load(Object sender, EventArgs e) in c:\inetpub\vhosts\otoparcaevi.com\httpdocs\urun_detay.aspx.cs:75
   System.Web.UI.Control.OnLoad(EventArgs e) +105
   System.Web.UI.Control.LoadRecursive() +67
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3784


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4087.0