public void Insert(Shouhin shouhin)
{
string sql = "INSERT INTO shouhin(sname,tanka) VALUES(@sname,@tanka)";
var cmd = new MySqlCommand(sql, con.Connection);
cmd.Parameters.AddWithValue("@sname", shouhin.Sname);
cmd.Parameters.AddWithValue("@tanka", shouhin.Tanka);
cmd.ExecuteNonQuery();
}
public void Update(Shouhin shouhin)
{
var sql = "UPDATE shouhin SET sname=@sname,tanka=@tanka WHERE sid=@sid";
var cmd = new MySqlCommand(sql, con.Connection);
cmd.Parameters.AddWithValue("@sname", shouhin.Sname);
cmd.Parameters.AddWithValue("@tanka", shouhin.Tanka);
cmd.Parameters.AddWithValue("@sid", shouhin.Sid);
cmd.ExecuteNonQuery();
}
private void button1_Click(object sender, EventArgs e)
{
String sname = textBoxSname.Text;
int tanka = int.Parse(textBoxTanka.Text);
if (shouhin == null)
{
shouhin = new Shouhin(0, sname, tanka);
}
else
{
shouhin.Sname = sname;
shouhin.Tanka = tanka;
}
}
private void buttonDel_Click(object sender, EventArgs e)
{
Shouhin shouhin = GetCurrentShouhin();
if (MessageBox.Show(shouhin.Sname + "を削除しますか？", "削除",
MessageBoxButtons.YesNo) == DialogResult.Yes)
{
var con = new HanbaiConnection();
var dao = new ShouhinDAO(con);
con.Open();
dao.Delete(shouhin.Sid);
dao.Fill(dtShouhin);
con.Close();
}
}
public Shouhin FindById(int sid)
{
var sql = "SELECT * FROM shouhin WHERE mid=@sid";
var cmd = new MySqlCommand(sql, con.Connection);
cmd.Parameters.AddWithValue("@sid", sid);
var reader = cmd.ExecuteReader();
Shouhin s = null;
if (reader.Read())
{
var sname = reader.GetString("sname");
var tanka = reader.GetInt32("tanka");
s = new Shouhin(sid, sname, tanka);
}
reader.Close();
return(s);
}
