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 371:    {
Line 372:        DropDownList1.Items.Clear();
Line 373:        SqlDataAdapter adp7 = new SqlDataAdapter("select * from tbtemporder where randomno='" + Request.Cookies["randno"].Value + "'ORDER BY randcid ASC", con);
Line 374:        DataSet ds7 = new DataSet();
Line 375:        adp7.Fill(ds7);

Source File: g:\pleskvhosts\webstarpatiala.com\httpdocs\graciousbooks\paymentonline.aspx.cs    Line: 373

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   user_Default.checktotal() in g:\pleskvhosts\webstarpatiala.com\httpdocs\graciousbooks\paymentonline.aspx.cs:373
   user_Default.GrdBind() in g:\pleskvhosts\webstarpatiala.com\httpdocs\graciousbooks\paymentonline.aspx.cs:396
   user_Default.Page_Load(Object sender, EventArgs e) in g:\pleskvhosts\webstarpatiala.com\httpdocs\graciousbooks\paymentonline.aspx.cs:73
   System.Web.UI.Control.OnLoad(EventArgs e) +107
   System.Web.UI.Control.LoadRecursive() +89
   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