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 43:         mv.sql = "SELECT nome_portfolio FROM portfolio_lavoro_mv WHERE ID = " + Request.QueryString["ID"];
Line 44:         mv.command = new OdbcCommand(mv.sql, mv.con);
Line 45:         nome = mv.command.ExecuteScalar().ToString();
Line 46: 
Line 47:         mv.sql = "SELECT nome_categoria FROM categorie_portfolio_mv WHERE ID = (SELECT categorie_portfolio_mvID FROM portfolio_lavoro_mv WHERE ID = " + Request.QueryString["ID"] + ")";

Source File: d:\home\mvitalia.com\httpdocs\dettaglio_portfolio.aspx.cs    Line: 45

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   dettaglio_portfolio.Page_Load(Object sender, EventArgs e) in d:\home\mvitalia.com\httpdocs\dettaglio_portfolio.aspx.cs:45
   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:4.8.4700.0