Silverlight中AutoCompletTextBox的使用

XAML页面:
<Grid x:Name="LaoutRoot">
 <StackPanel Grid.Column="0" Grid.Row="0" VerticalAlignment="Center" Orientation="Horizontal">
                    <TextBlock Text="书籍名称" Width="50" VerticalAlignment="Center" Margin="380,0,15,0"></TextBlock>
                    <input:AutoCompleteBox Width="150" x:Name="AutoBookName"
                                           IsTextCompletionEnabled="false" IsTabStop="True"
                                           Populating="AutoBookName_Populating">
                    </input:AutoCompleteBox>
                    <Button x:Name="BtnSearch" Content="搜索" Width="100" Margin="15,0,15,0" VerticalAlignment="Center" Click="BtnSearch_Click"></Button>
</StackPanel>
</Grid>
关于页面设置比较简单，主要的就是该控件的几个比较重要的属性和事件:
利用AutoCompleteBox时需注意该组件的事件发生在Populating上
IsTextCompletionEnabled 属性则表示搜索的数据中第一条是否显示在AutoCompleteBox文本框中

后台代码:
  /// <summary>
        /// 此方法为autocompletebox绑定数据
        /// 事件:Populating下发生
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void AutoBookName_Populating(object sender, PopulatingEventArgs e)
        {
            AutoCompleteBox source = sender as AutoCompleteBox;     //得到当前触发事件的AutoCompleteBox
            //调用异步数据查询
             SearchBookByName(source.Text.ToString().Trim());
        }

       public void SearchBookByName(string bookName)
          { 
                             //调用相对应的webservice服务
                            BookService.BooksServiceSoapClient client = new MyBookShop.BookService.BooksServiceSoapClient();
                      client.FindByBookNameCompleted += new EventHandler<MyBookShop.BookService.FindByBookNameCompletedEventArgs>(client_FindByBookNameCompleted);
                client.FindByBookNameAsync(bookName);
          }

        /// <summary>
        /// 异步数据查询
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void client_FindByBookNameCompleted(object sender, MyBookShop.BookService.FindByBookNameCompletedEventArgs e)
        {
            //绑定AutoCompleteBox数据
            if (AutoBookName != null && e.Error == null && !e.Cancelled)
            {
                if (e.Result.Count > 0)
                {
                    List<string> employeeStrList = new List<string>();
                    foreach (BookService.Book book in e.Result)
                    {
                        employeeStrList.Add(book.Title.Trim());
                    }
                    //绑定数据源
                    AutoBookName.ItemsSource = employeeStrList;
                    AutoBookName.PopulateComplete();
                }
            }
        }