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C# System.EngineeExecutionException处于意外位置_C#_Windows_Windows Phone 8 - Fatal编程技术网

C# System.EngineeExecutionException处于意外位置

C# System.EngineeExecutionException处于意外位置,c#,windows,windows-phone-8,C#,Windows,Windows Phone 8,我试图用webservice中的值填充LongListSelector。 在我得到承包商后,我得到System.EngineeExecutionException。当我尝试制作新列表时,我不知道该如何避免它 有人能帮我处理吗 private async void fillLongList() { Contractors contr = await pobierzSieciHandlowe(); listaSieci = new List<Sie

我试图用webservice中的值填充LongListSelector。 在我得到承包商后,我得到System.EngineeExecutionException。当我尝试制作新列表时,我不知道该如何避免它

有人能帮我处理吗

  private async void fillLongList()
    {

        Contractors contr = await pobierzSieciHandlowe();
        listaSieci = new List<SieciHandloweList>();
        foreach (Contractor c in contr.contractors)
        {
            listaSieci.Add(new SieciHandloweList(c.name, "test", c.logos.logo_60_url));
        }
        List<SieciHandloweGroup<SieciHandloweList>> DataSource = SieciHandloweGroup<SieciHandloweList>.CreateGroups(listaSieci,
            System.Threading.Thread.CurrentThread.CurrentUICulture, (SieciHandloweList s) => { return s.NazwaSklepu; }, true);
        llsSieciHandlowe.ItemsSource = DataSource;
    }
private异步void fillLongList()
{
承包商控制=等待pobierzSieciHandlowe();
listaSieci=新列表();
foreach(承包商c在承包商中)
{
添加(新的SieciHandloweList(c.name,“test”,c.logos.logo_60_url));
}
List DataSource=SieciHandloweGroup.CreateGroups(listaSieci,
System.Threading.Thread.CurrentThread.CurrentUICulture,(SieciHandLowerList s)=>{return s.NazwaSklepu;},true);
llsSieciHandlowe.ItemsSource=数据源;
}

哪一行代码导致了异常?listaSieci=new List();