private static void RefreshListAsync(TextBox textBox, ListBox listBox, string word, PrefixDictionary<KeyValuePair<string, object>[]> dict, Action callback, StringComparison comparison)
{
var matches = dict.Search(word, false).Select(found => found.Value).SelectMany(found => found).ToList();
listBox.Dispatcher.Invoke(DispatcherPriority.Normal, new Action(delegate{
var ev = (QueryCandidatesEventHandler)textBox.GetValue(QueryCandidatesProperty);
if(ev != null){
var e = new QueryCandidatesEventArgs(word);
foreach(var del in ev.GetInvocationList()){
del.DynamicInvoke(new object[]{textBox, e});
if(e.Candidates != null){
matches.AddRange(e.Candidates);
}
}
}
}));
listBox.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(delegate{
bool isIns = GetIsInsertAutomatically(textBox);
listBox.ItemsSource = null;
listBox.ItemsSource = matches.ToArray();
SetState(listBox, new AutoCompleteState(){TextBox = textBox});
listBox.SelectionChanged -= ListBox_SelectionChanged;
if(isIns){
listBox.SelectionChanged += ListBox_SelectionChanged;
}
if(listBox.Items.Count > 0){
listBox.SelectedIndex = 0;
listBox.ScrollIntoView(listBox.SelectedItem);
}
if(!isIns){
listBox.SelectionChanged += ListBox_SelectionChanged;
}
if(callback != null){
callback();
}
}));
}
private static void QueryDirectoryCandidates(object sender, QueryCandidatesEventArgs e)
{
string path = e.Query;
if(!String.IsNullOrEmpty(path)){
var idx = path.LastIndexOf(Path.DirectorySeparatorChar.ToString());
if(idx > 0){
var dir = path.Substring(0, idx + 1);
var name = path.Substring(idx + 1);
try{
var dirs = Directory.GetDirectories(dir).Where(file => Path.GetFileName(file).StartsWith(name, StringComparison.OrdinalIgnoreCase));
e.Candidates = dirs.Select(d => new KeyValuePair<string, object>(d, d)).ToArray();
}catch{
e.Candidates = new KeyValuePair<string, object>[0];
}
}
}
}
