private void delComputer_Click(object sender, EventArgs e)
{
ItemsDatabase db = new ItemsDatabase();
var row = softwareDataGrid.CurrentCell.RowIndex;
string itemID = hardwareDataGrid.Rows[row].Cells[4].Value.ToString();
Computer computer = new Computer(itemID, "", 0.0, 0.0, 0, 0, 0);
db.DeleteComputer(computer);
MessageBox.Show("Izdelek izbrisan!");
List <Computer> computers = new List <Computer>();
computers = db.ReadComputers();
computerDataGrid.DataSource = computers;
}