删除按钮代码

private void button6_Click(object sender, EventArgs e)
{
SqlConnection conn = BaseClass.DBConn.happyfood();
conn.Open();
SqlCommand cmd = new SqlCommand("delete from tb_Room where
RoomName='" + dataGridView1.SelectedCells[0].Value.ToString() + "'", conn);
cmd.ExecuteNonQuery();//连接执行并返回受影响的行数。增删修改都
要用到这个方法。
conn.Close();
BindData();
}