Question

为Windows应用商店8.1构建应用，我按照教程实现了我的搜索框。但是，只搜索＆＃34; startWith＆＃34;另一个。

如果我尝试使用＆＃34; contains＆＃34;我迷恋了，一个未经处理的例外。

它在第一个工作，但如果我在搜索框中更改查询它会粉碎...经常，而不是总是。

我无法理解调试器消息，因为它引用了应用程序代码......

这是我的调试器消息

Debugger:Debugger Break 
 A break in the debugger session because a user paused the session.
 Time: 13/04/2014 12:34:34
 Thread:<No Name>[6220]

并参考

#if DEBUG && !DISABLE_XAML_GENERATED_BREAK_ON_UNHANDLED_EXCEPTION
        UnhandledException += (sender, e) =>
        {
            if (global::System.Diagnostics.Debugger.IsAttached) global::System.Diagnostics.Debugger.Break();
        };
#endif
    }

我的e对象出现异常：参数不正确，处理：false ....

那是我的SuggestionRequested函数，哪里有问题（我认为）

        public async void OnSuggest(SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args)
    {
        var deferral = args.Request.GetDeferral();
        TransporterExt tr_search = new TransporterExt();
        ObservableCollection<TransporterExt> querySuggestions = new ObservableCollection<TransporterExt>();
        var queryText = args.QueryText != null ? args.QueryText.Trim() : null;

        if (string.IsNullOrEmpty(queryText)) return;

        suggested.Clear();

        tr_search.name = queryText;
        try
        {


            var suggestionCollection = args.Request.SearchSuggestionCollection;


             querySuggestions = await TransporterService.Search(tr_search);    



            if (querySuggestions != null && querySuggestions.Count > 0 )

             {

                 int i = 0;
                 foreach (TransporterExt tr in querySuggestions)
                 {
                     string strB = sender.QueryText;
                     string strA = tr.name;
                     if(await Utility.Compare(strA,strB))

                     //using this condition all works fine
                     //if (tr.name.StartsWith(sender.QueryText, StringComparison.CurrentCultureIgnoreCase))
                     {
                         string name = tr.name;
                         string detail = tr.trId.ToString(); 
                         string tag = i.ToString(); 
                         string imageAlternate = "imgDesc";

                         suggestionCollection.AppendResultSuggestion(name, detail, tag, imgRef, imageAlternate);
                         if(tr!=null)
                         suggested.Add(tr);

                         i++;
                     }


               }

            }
        }
        catch (Exception exc)
        {
            //Ignore any exceptions that occur trying to find search suggestions.
             Debug.WriteLine("Exception  " + exc.Message);
             Debug.WriteLine(exc.StackTrace);
        }

        deferral.Complete();
    }

和包含实用程序

       public static async Task<bool>Compare(string A, string B) {
        bool contains = Regex.Match(A, B, RegexOptions.IgnoreCase).Success;
        Debug.WriteLine("regex ="+contains);
        return contains;
    }

我在UserControl中获得了这个SearchBox，这是我的UC的代码

        public delegate void SuggestionsRequested(SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args);

    public event Windows.Foundation.TypedEventHandler<SearchBox, SearchBoxSuggestionsRequestedEventArgs> SearchBoxSuggestionsRequested;

    private void SearchBoxSuggestions(SearchBox sender, SearchBoxSuggestionsRequestedEventArgs args)
    {

        if (SearchBoxSuggestionsRequested != null)
            SearchBoxSuggestionsRequested(sender, args);
        else
            Debug.WriteLine("TruckFormUCException");
    }

可以使用其他逻辑进行搜索，而不是＆＃34;从＃34开始？？...我的错？

SearchBox windows App 8.1，搜索子句“包含”

0 个答案: