Deleting multiple rows from a table

I have a table and I want to delete all rows with a specific card serial . There are multiple rows with the same card serial .So I wrote this code but it seems that's not working:

try

{

using (SqlConnection con = new SqlConnection(WF_AbsPres.Properties.Settings.Default.DbConnectionString))

{

   con.Open();

   SqlCommand command2 = new SqlCommand("DELETE  FORM DevInOut where Cardserial='" + textBox5.Text + "'", con);

   command2.ExecuteNonQuery();

   con.Close();

}

}

   catch (SqlException ex)

{

}

how can assure all the rows will be deleted . Should I use procedure? How do I use procedure?

Updated on 28-Sep-2013

using (SqlConnection con = new SqlConnection(WF_AbsPres.Properties.Settings.Default.DbConnectionString))
{
con.Open();
SqlCommand command2 = new SqlCommand("DELETE FROM DevInOut where Cardserial=@Cardserial", con);
commdand2.Parameters.AddWithValue("@Cardserial", textBox5.Text);
command2.ExecuteNonQuery();
con.Close();
}

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Deleting multiple rows from a table

Aaron Douglas

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