using selected item in listbox c# to fill texbox
string selected = listBox1.SelectedItem.ToString();
int id = int.Parse(selected.Split(' ')[0]); // we are using dictionary and spliting the item in listbox and as spliting parametar we are using space
Car<string, string, string> cars = car[id];
textBox1.Text = id.ToString();
textBox2.Text = cars.manufacturer;
textBox3.Text = cars.model;
pictureBox1.ImageLocation = cars.picture;
//by iq18but18cm