示例#1
0
        /// <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;
        }