void ListViewItemsSelectedIndexChanged(object sender, EventArgs e) { if (listViewItems.SelectedItems.Count > 0) { double sum = 0; foreach (ListViewItem li in listViewItems.SelectedItems) { TruckReturnItem i = ret.Items[li.Index]; sum += i.Amount; } labelSumSelected.Text = sum.ToString("###,##0.00"); } }
public TruckReturnItemForm(TruckReturnItem item) { InitializeComponent(); this.ReturnItem = item; buttonFindItem.Click += delegate { if (FindItem != null) { FindItem(textBoxItem.Text, null); } }; textBoxItem.KeyDown += delegate(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { buttonFindItem.PerformClick(); } }; textBoxQuantity.KeyDown += delegate(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Enter) { buttonOk.PerformClick(); } }; }