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Show DataReader results in DataGridView

I need to view DataReader results for quick debug.
I tried code below but DataGridView is empty.

How to fix ?


using System.Data;
using System.Windows.Forms;
using Npgsql;

class Form1 : Form
static void Main()
Application.Run(new Form1());

DataGridView dataGridView1 = new DataGridView();

string s = "SERVER=localhost;USER=postgres";
string query = @"select * from pg_tables";
var con1 = new NpgsqlConnection(s);
IDbCommand cmd = con1.CreateCommand();
cmd.CommandText = query;
var dr = cmd.ExecuteReader();
dataGridView1.DataSource = dr;
Aug 17 '08 #1
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