csharp C＃数据库删除

Posted 2021-05-12

MySqlConnection con = new MySqlConnection("server=localhost;userid=root;password=kodasdell;database=dev_db");

private void button4_Click(object sender, EventArgs e)
        {

            if (textBox6.Text != "")
            {
                MySqlCommand cmd = new MySqlCommand("DELETE FROM dev_table WHERE id="
                    + textBox6.Text, con);

                con.Open();
                cmd.ExecuteNonQuery();
                MessageBox.Show("Success!");
                con.Close();
            }
            else { MessageBox.Show("There is empty field(s)!"); }
        }