Server Error in '/' Application.

There is no row at position 0.

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.IndexOutOfRangeException: There is no row at position 0.

Source Error:


Line 658:            else
Line 659:            {
Line 660:                return Convert.ToDouble(row.Rows[0].ItemArray.GetValue(0)); // just visitor
Line 661:            }
Line 662:        }

Source File: e:\web\craftic1\App_Code\BLL.cs    Line: 660

Stack Trace:


[IndexOutOfRangeException: There is no row at position 0.]
   System.Data.RBTree`1.GetNodeByIndex(Int32 userIndex) +1559278
   System.Data.RBTree`1.get_Item(Int32 index) +19
   System.Data.DataRowCollection.get_Item(Int32 index) +11
   GeneralMethods.GetPriceForCertainUser(DataTable row) in e:\web\craftic1\App_Code\BLL.cs:660
   AddToCart.Page_Load(Object sender, EventArgs e) in e:\web\craftic1\AddToCart.aspx.cs:54
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627


Version Information: Microsoft .NET Framework Version:2.0.50727.8974; ASP.NET Version:2.0.50727.8975