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 107:
Line 108:            MySqlCommand cmd = new MySqlCommand(selectQuery, connection);
Line 109:            dataReader = cmd.ExecuteReader();
Line 110:
Line 111:            if (dataReader.HasRows)

Source File: d:\vhosts\zemedya.com\elmaagaci.com.tr\App_Code\DBManager.cs    Line: 109

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   MySql.Data.MySqlClient.NativeDriver.ExecuteCommand(DBCmd cmd, Byte[] bytes, Int32 length) +59
   MySql.Data.MySqlClient.NativeDriver.Query(Byte[] bytes, Int32 length) +65
   MySql.Data.MySqlClient.Statement.ExecuteNext() +119
   MySql.Data.MySqlClient.PreparableStatement.ExecuteNext() +11
   MySql.Data.MySqlClient.PreparableStatement.Execute() +35
   MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior) +528
   MySql.Data.MySqlClient.MySqlCommand.ExecuteReader() +6
   DBManager.Select(String selectQuery) in d:\vhosts\zemedya.com\elmaagaci.com.tr\App_Code\DBManager.cs:109
   DAL.urunanakategori.GetCategoryAsDataTableByID(String ID) in d:\vhosts\zemedya.com\elmaagaci.com.tr\App_Code\urun.cs:759
   icerik.Page_Load(Object sender, EventArgs e) in d:\vhosts\zemedya.com\elmaagaci.com.tr\icerik.aspx.cs:26
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0