[Mono-list] Problem with Npgsql

Adrian Dinu adrian.dinu at dreamsoftware.ro
Fri Sep 23 09:42:42 EDT 2005


Before cnn.Close() do a dr.Close() too.

On Fri, 2005-09-23 at 13:35 +0000, Willngton Roque wrote:

> I'm try using Mono with Npgsql and have this problem.
> I'm try reboot my pc and de problem percist.
> 
> Unhandled Exception: System.InvalidOperationException: DataReader
> positioned beyond end of result set.
> in <0x00092> Npgsql.NpgsqlDataReader:CheckHaveRow ()
> in <0x00058> Npgsql.NpgsqlDataReader:GetValue (Int32 Index)
> in <0x00051> Npgsql.NpgsqlDataReader:get_Item (System.String name)
> in <0x000aa> MonoSql:Main (System.String[] args)
> 
> Help me?
> 
> Ubuntu 5.04 + Mono JIT compiler version 1.1.9
> 
> Thanks
> 
> ---code
> 
> // created on 23/9/2005 at 08:43
> using System;
> using System.Data;
> using Npgsql;
> 
>  class MonoSql
>  {
>      public static void Main(string[] args)
>      {
>          string strConn = "Server=localhost;"+
>          "Port=5432;"+
>          "User ID=postgres;"+
>          "Password=;"+
>          "Database=teste;";
>          
>          NpgsqlConnection cnn = new NpgsqlConnection(strConn);
>          
>          string sql = "Select * from teste order by nome";
>          NpgsqlCommand cmd = new NpgsqlCommand(sql, cnn);
>          
>          cnn.Open();
>          
>          NpgsqlDataReader dr = cmd.ExecuteReader();
>                       
>                  
>          while (dr.Read());
>          {
>              Console.WriteLine("Nome: " + dr["nome"]);
>          }
>          
>          cnn.Close();
>          
>          Console.WriteLine("Para finalizar precione qq tecla");
>          
>          Console.ReadLine();        
>          
>      }
>  }
>   
> 
> -- 
> 
> 
> -- 
> Willngton Roque
> E-mail: willngton at gmail.com
> MSN: willngton at hotmail.com
> ICQ: 82484019 
> 
> _______________________________________________
> Mono-list maillist  -  Mono-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/mono-list


________________________________________________________________________

Adrian Dinu
Technical Manager
Dream Team Software
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