Duda en C#

[kutulay]

Seria así ?¿


private void button2_Click(object sender, EventArgs e)
{
this.textBox1.Text ="";
this.textBox2.Text = "";
dataGridView1.DataSource = null;
bdl.Clear();

Codigo = textBox1.Text.Trim();
conn.Open();//Abre la conexion
if (bdl.Tables.Count == 0)
{

cmd.CommandText = " SELECT readerid FROM eventrecord WHERE tagid like '"+ Codigo +"%' ";
adaptador.Fill(tabla);
bdl.Tables.Add(tabla);

}

else
{

bdl.AcceptChanges();
adaptador.Update(bdl, "eventrecord");

}

dataGridView1.DataSource = bdl.Tables["eventrecord"];
dataGridView1.Update();
conn.Close();//Cierra la conexion

this.dataGridView1.AllowUserToAddRows = false;
textBox2.Text = dataGridView1.Rows.Count.ToString();
}
}
}