/// <summary>
/// 显示自动提示
/// </summary>
/// <param name="text"></param>
public void ShowAutoComplete(string text)
{
var selectedText = text;
///分词
var selected = selectedText.Split(' ');
selected = selected.Reverse().ToArray();
listbox.Items.Clear();
SourceText = /*GetRecentString(text);// */ selected.FirstOrDefault();
///如果为空不提示
if (SourceText.All(c => c == ' '))
{
return;
}
///显示在智能提示框的内容
var showtext = keywords.Where(c => c.Contains(SourceText.ToUpper())).ToArray();
foreach (var ds in showtext)
{
var listItem = new ListBoxItem();
listItem.Content = ds;
if (ds.All(x => x == ' '))
{
continue;
}
///减小提示框显示数量，避免卡顿
if (listbox.Items.Count > 10)
{
break;
}
listbox.Items.Add(listItem);
}
Rect rect = tb.GetRectFromCharacterIndex(tb.SelectionStart);
Point point = rect.BottomLeft;
pop.PlacementRectangle = rect;
if (listbox.Items.Count == 0)
{
pop.IsOpen = false;
return;
}
listbox.SelectedIndex = 0;
pop.IsOpen = true;
}