private void MakeActive(string itemListId, List <ListViewItem> listViewItemList)
{
var queueList = m_listQueue.ToList();
AutoCompleteItemList itemList = queueList.Find(l => l.Tag is string && (l.Tag as string) == itemListId);
MakeActive(itemList, listViewItemList);
}
private void MakeActive(AutoCompleteItemList itemList, List <ListViewItem> listViewItemList)
{
m_currentListOfListViewItems = listViewItemList;
var queueList = m_listQueue.ToList();
m_listQueue = new Queue <AutoCompleteItemList>(queueList.Except(new[] { itemList }));
m_listQueue.Enqueue(itemList); //ganz hinten einfügen
itemList.Show();
itemList.Visible = true;
queueList.Except(new[] { itemList }).ToList().ForEach(l => { l.Visible = false; l.Hide(); });
m_currentActiveItemListControl = itemList;
}
private void BuildItemListAsync(AutoCompleteItemList listControl, List <ListViewItem> listViewItemList, string itemListId)
{
lock (asyncItemAddLockObject)
{
m_addItemsRun++;
}
Action asyncAddAllItems = () =>
{
int currentRun = m_addItemsRun;
lock (asyncItemAddLockObject)
{
Action clearList = () => listControl.Items.Clear();
this.Invoke(clearList);
}
int pageStart = 0;
int pageSize = 500;
while (true)
{
pageSize = Math.Min(pageSize, listViewItemList.Count - pageStart);
var page = listViewItemList.Skip(pageStart).Take(pageSize);
Action addItem = () => listControl.Items.AddRange(page.ToArray());
lock (asyncItemAddLockObject)
{
if (m_addItemsRun != currentRun)
{
break;
}
this.BeginInvoke(addItem);
}
if (pageStart + pageSize == listViewItemList.Count)
{
break;
}
pageStart += Math.Min(pageSize, listViewItemList.Count - pageSize);
}
};
asyncAddAllItems.BeginInvoke(null, null);
}
