private void delHardware_Click(object sender, EventArgs e)
{
ItemsDatabase db = new ItemsDatabase();
var row = softwareDataGrid.CurrentCell.RowIndex;
string itemID = hardwareDataGrid.Rows[row].Cells[1].Value.ToString();
HardwareItem hardwareItem = new HardwareItem(itemID, "", 0.0, 0.0);
db.DeleteHardware(hardwareItem);
MessageBox.Show("Izdelek izbrisan!");
List <HardwareItem> hardwareItems = new List <HardwareItem>();
hardwareItems = db.ReadHardwareItems();
hardwareDataGrid.DataSource = hardwareItems;
}