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 22:             WebxelDevSuite.DbLayer Db = new WebxelDevSuite.DbLayer("ConStr");
Line 23:             Db.CommandText = "SELECT * FROM [qryWebAccessories] WHERE [PartNo] = @PartNo";
Line 24:             Db.AddParameter("@PartNo", Request.QueryString["PartNo"], DbType.String);
Line 25:             RS = Db.GetDataRow();
Line 26:             Db.Close();

Source File: e:\webs\witternew\CodeBehind\accessory_details.aspx.cs Line: 24

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   WebxelDevSuite.DbLayer.AddParameter(String ParameterName, Object Value, DbType DataType, ParameterDirection Direction) +32
   WebxelDevSuite.DbLayer.AddParameter(String ParameterName, Object Value, DbType DataType) +15
   Witter.accessories.accessory_details.Page_Load(Object sender, EventArgs e) in e:\webs\witternew\CodeBehind\accessory_details.aspx.cs:24
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42