private void btnOkModyfikujUsluge_Click(object sender, EventArgs e)
{
if (txtCenaModyfikuj.Text == "")
txtCenaModyfikuj.Text ="-1";
Usluga u = new Usluga();
u.modyfikujUsluge(txtBoxtoInt(txtIdUslugiModyfikuj.Text), txtOpisUslugiModyfikuj.Text, txtBoxtoInt(txtCenaModyfikuj.Text), 1);
txtCenaModyfikuj.Text = "";
txtOpisUslugiModyfikuj.Text = "";
txtIdUslugiModyfikuj.Text = "";
wyswietlListeUslug();
}
private void btnOkUsunUsluge_Click(object sender, EventArgs e)
{
Usluga u = new Usluga();
u.usunUsluge(txtBoxtoInt(txtIdUslugiUsun.Text));
wyswietlListeUslug();
}
private void btnOkDodajUsluge_Click(object sender, EventArgs e)
{
Usluga u = new Usluga();
int cena = txtBoxtoInt(txtCena.Text);
u.dodajUsluge(txtOpisUslugi.Text, cena, 1);
wyswietlListeUslug();
txtCena.Text = "";
txtOpisUslugi.Text = "";
}