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 733:        sql.AppendFormat("SELECT * FROM \"Eventos\" WHERE eve_codigo = {0}", codigo);
Line 734:        dt = Data.getdt(sql.ToString(), "");
Line 735:        evento.codigo = Convert.ToInt32(dt.Rows[0][0]);
Line 736:        evento.titulo = dt.Rows[0][1].ToString();
Line 737:        evento.conteudo = dt.Rows[0][2].ToString();

Source File: e:\home\asserti\Web\App_Code\querys.cs    Line: 735

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   querys.getEvento(Int32 codigo) in e:\home\asserti\Web\App_Code\querys.cs:735
   pages_dtevento.getDetails() in e:\home\asserti\Web\pages\dtevento.aspx.cs:23
   pages_dtevento.Page_Load(Object sender, EventArgs e) in e:\home\asserti\Web\pages\dtevento.aspx.cs:13
   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