private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
labalreset();
Ajandek a = (Ajandek)listBox1.SelectedItem;
int tboxbaid = a.Id;
txbx_id.Text = Convert.ToString(tboxbaid);
string tboxbanev = a.Nev;
txtbx_nev.Text = tboxbanev;
string tboxbauzlet = a.Uzlet;
txtbx_uzlet.Text = tboxbauzlet;
lbl_idreszlet.Text += " " + tboxbaid;
lbl_nevreszlet.Text += " " + tboxbanev;
lbl_uzletreszlet.Text += " " + tboxbauzlet;
}
private void btn_insert_Click(object sender, EventArgs e)
{
int id = Convert.ToInt32(txbx_id.Text);
string nev = txtbx_nev.Text;
string uzlet = txtbx_uzlet.Text;
var insertComm = conn.CreateCommand();
insertComm.CommandText = @"
INSERT INTO ajandek (nev,uzlet)
VALUES(@nev,@uzlet)
";
insertComm.Parameters.AddWithValue("@nev", nev);
insertComm.Parameters.AddWithValue("@uzlet", uzlet);
insertComm.ExecuteNonQuery();
Ajandek ajandek = new Ajandek(id, nev, uzlet);
listBox1.Items.Add(ajandek);
}
private void btn_delete_Click(object sender, EventArgs e)
{
if (listBox1.SelectedIndex > -1)
{
Ajandek a = (Ajandek)listBox1.SelectedItem;
int id = a.Id;
var deleteComm = conn.CreateCommand();
deleteComm.CommandText = @"
DELETE FROM ajandek
WHERE id=@id
";
deleteComm.Parameters.AddWithValue("@id", id);
deleteComm.ExecuteNonQuery();
listaupdate();
}
else
{
MessageBox.Show("Nincs adat kiválasztva!", "Hiba", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void AdatBetoltes()
{
string sql = @"
SELECT id, nev, uzlet
FROM ajandek
ORDER BY nev
";
var comm = this.conn.CreateCommand();
comm.CommandText = sql;
using (var reader = comm.ExecuteReader())
{
while (reader.Read())
{
int id = reader.GetInt32("id");
string nev = reader.GetString("nev");
string uzlet = reader.GetString("uzlet");
Ajandek ajandek = new Ajandek(id, nev, uzlet);
listBox1.Items.Add(ajandek);
}
}
}
private void btn_update_Click(object sender, EventArgs e)
{
if (listBox1.SelectedIndex > -1)
{
Ajandek a = (Ajandek)listBox1.SelectedItem;
int id = a.Id;
string nev = txtbx_nev.Text;
string uzlet = txtbx_uzlet.Text;
var updateComm = conn.CreateCommand();
updateComm.CommandText = @"
UPDATE ajandek SET nev=@nev, uzlet=@uzlet
WHERE id=@id
";
updateComm.Parameters.AddWithValue("@id", id);
updateComm.Parameters.AddWithValue("@nev", nev);
updateComm.Parameters.AddWithValue("@uzlet", uzlet);
updateComm.ExecuteNonQuery();
listaupdate();
}
else
{
MessageBox.Show("Nincs adat kiválasztva!", "Hiba", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}