private void OnItemSelectTask(object sender, EventArgs e)
{
item_select_step_timer_.Restart();
while (item_select_step_timer_.ElapsedMilliseconds < ITEM_SELECT_STEP)
{
if (item_select_index_ >= VirtualListSize)
{
break;
}
SelectedIndices.Add(item_select_index_++);
}
ItemSelectBusyStatusChanging?.Invoke(this, EventArgs.Empty);
if (item_select_index_ >= VirtualListSize)
{
item_select_task_.Stop();
ItemSelectBusy = false;
ItemSelectBusyStatusChanged?.Invoke(this, EventArgs.Empty);
OnSelectedIndexChanged(EventArgs.Empty);
}
}
public void SelectAllItems()
{
if (ItemSelectBusy)
{
return;
}
item_select_index_ = 0;
ItemSelectBusy = true;
ItemSelectBusyStatusChanged?.Invoke(this, EventArgs.Empty);
item_select_task_.Stop();
item_select_task_.Start();
}