private void button4_Click(object sender, EventArgs e)
{
ItemsFactory itemsFactory = new ItemsFactory();
item = itemsFactory.CreateItem(comboBox2.Text);
item.Id = Convert.ToInt32(textBox5.Text.Trim());
item.Name = textBox3.Text;
item.price = textBox4.Text;
item.Category = comboBox2.Text;
Item_Manager _Manager = new Item_Manager();
_Manager.DeleteItem(item);
v();
}
