void OrderList_ItemCheck(object sender, ItemCheckEventArgs e)
{
if (e.NewValue != CheckState.Checked || _suspendCheckEvent)
{
return;
}
_suspendCheckEvent = true;
var item = Items[e.Index];
//取消其它订单的选择
CheckedItems.Cast <OrderTicketListViewItem>()
.Where(s => s.Group != item.Group)
.ToArray().ForEach(s => s.Checked = false);
//如果是未完成订单，则同时选择
var titem = (item as OrderTicketListViewItem).Ticket;
if (titem.OrderStatus == OrderStatus.NotPay || titem.OrderStatus == OrderStatus.ResignNotPaid || titem.OrderStatus == OrderStatus.Queue)
{
Items.Cast <OrderTicketListViewItem>()
.Where(s => s != item && s.Group == item.Group)
.ForEach(s => s.Checked = true);
}
_suspendCheckEvent = false;
}
public long sumChecked()
{
return(
CheckedItems
.Cast <ListViewItem>()
.Select(i => ((KeyValuePair <String, List <IDownloadableResourceFile> >)(i.Tag)).Value[0].size)
.Sum()
);
}
public IList <Tuple <IDownloadableResourceFile, String> > listChecked()
{
return(
CheckedItems
.Cast <ListViewItem>()
.Select(
(i) => {
KeyValuePair <String, List <IDownloadableResourceFile> > kvp = (KeyValuePair <String, List <IDownloadableResourceFile> >)(i.Tag);
return (new Tuple <IDownloadableResourceFile, String>(kvp.Value[0], kvp.Key));
}
)
.ToList()
);
}
private void ListView_KeyDown(object sender, KeyEventArgs e)
{
FocusedItemKeyDown = FocusedItem;
// Check selected items when Shift Up/Down
if ((Control.ModifierKeys & Keys.Shift) == Keys.Shift)
{
if (e.KeyCode == Keys.Down || e.KeyCode == Keys.Up)
{
FocusedItem.Checked = !FocusedItem.Checked;
}
}
//Check all items
if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
{
if (e.KeyCode == Keys.A || e.KeyCode == Keys.Add)
{
foreach (ListViewItem item in Items.Cast <ListViewItem>())
{
item.Checked = true;
}
}
//Uncheck all items
if (e.KeyCode == Keys.Subtract)
{
foreach (ListViewItem item in CheckedItems.Cast <ListViewItem>())
{
item.Checked = false;
}
}
//Invert all items
if (e.KeyCode == Keys.Multiply)
{
foreach (ListViewItem item in Items.Cast <ListViewItem>())
{
item.Checked = !item.Checked;
}
}
}
}
public IEnumerable <T> GetCheckedItemsAsIEnumerable()
{
return(CheckedItems.Cast <T>().ToList());
}
