public ListDataLayer(RadListElement owner)
{
this.owner = owner;
this.listSource = this.CreateListSource();
this.items = this.CreateItemsCollection(owner);
this.listSource.CollectionView.GroupDescriptors.Add("GroupKey", ListSortDirection.Ascending);
this.WireEvents();
}
protected virtual void SuggestOverride(string pattern)
{
int selectedIndex = this.SelectedIndex;
this.patternText = pattern;
this.SuspendSuggestNotifications();
if (selectedIndex >= 0)
{
RadListDataItem radListDataItem = this.Items[selectedIndex];
radListDataItem.Selected = false;
radListDataItem.Active = false;
}
this.DataLayer.Refresh();
this.SelectedIndex = -1;
this.ResumeSuggestNotifications();
RadListDataItemCollection items = this.DataLayer.Items;
int count = items.Count;
if (count > 0)
{
this.UpdateLayout();
this.ScrollToItem(items.First);
}
bool flag = this.IsAppendMode && count > 0;
string str = string.Empty;
if (flag)
{
str = this.GetSuggestedText(items.First, true);
}
else if (!this.IsSuggestMode && this.IsAppendMode)
{
str = this.patternText;
}
else if (count == 1)
{
str = this.GetSuggestedText(items.First, false);
}
AutoCompleteAction action = AutoCompleteAction.None;
if (flag && !this.IsExactSuggestion(str, this.patternText))
{
action = AutoCompleteAction.Append;
}
this.SetSuggestedText(str, action);
}