private void button1_Click(object sender, EventArgs e)
{
try
{
StreamReader fr = new StreamReader("tv.txt");
n = 0;
while (!fr.EndOfStream)
{
string p = fr.ReadLine();
string m = fr.ReadLine();
double c = Convert.ToDouble(fr.ReadLine());
t[n] = new tv(p, m, c);
n++;
}
fr.Close();
double procenat = Convert.ToDouble(textBox2.Text);
for (int i = 0; i < n; i++)
{
if (t[i].Naziv.Equals(textBox1.Text))
{
t[i].Cena = t[i].Cena * (100 - procenat) / 100;
}
}
listBox1.Items.Clear();
StreamWriter fw = new StreamWriter("spisak.txt");
for (int i = 0; i < n; i++)
{
fw.WriteLine(t[i].Naziv);
fw.WriteLine(t[i].Model);
fw.WriteLine(t[i].Cena.ToString());
}
fw.Close();
listBox1.Items.Clear();
for (int i = 0; i < n; i++)
{
listBox1.Items.Add("Naziv: " + t[i].Naziv);
listBox1.Items.Add("Model: " + t[i].Model);
listBox1.Items.Add("Cena: " + t[i].Cena + "RSD");
listBox1.Items.Add("* * *");
}
button2.Enabled = true;
}
catch (Exception izuzetak)
{
MessageBox.Show(izuzetak.Message);
}
}
private void button2_Click(object sender, EventArgs e)
{
textBox1.Clear();
textBox2.Clear();
try
{
StreamReader f = new StreamReader("tv.txt");
n = 0;
while (!f.EndOfStream)
{
string p = f.ReadLine();
string m = f.ReadLine();
double c = Convert.ToDouble(f.ReadLine());
t[n] = new tv(p, m, c);
n++;
}
f.Close();
for (int i = 0; i < n; i++)
{
for (int j = i + 1; j < n; j++)
{
if (t[j].Cena < t[i].Cena)
{
tv pom = t[i];
t[i] = t[j];
t[j] = pom;
}
}
}
listBox1.Items.Clear();
for (int i = 0; i < n; i++)
{
listBox1.Items.Add("Naziv: " + t[i].Naziv);
listBox1.Items.Add("Model: " + t[i].Model);
//ne moze t[i].cena, zato sto je private
listBox1.Items.Add("Cena: " + t[i].Cena + "RSD");
listBox1.Items.Add("* * *");
}
button2.Enabled = false;
}
catch (Exception izuzetak)
{
MessageBox.Show(izuzetak.Message);
}
}
public bool JeftinijiOd(tv t)
{
return(cena < t.cena);
}
