提示错误：Application_UnhandledException
Favorite 是一LonglistSelector
执行这两行后就开始报错了，为什么？
{
ItemViewModel cat = (ItemViewModel)Favorite.SelectedItem;
String dog= cat.LineTwo;
}
发现貌似是Hold事件没有触发SELECTEDITEM的原因!!当前Hold数据没有被选择~怎么会有这种问题的啊!
经chobit提示后修改为c#
private void wolf(object sender, System.Windows.Input.GestureEventArgs e)
{
FrameworkElement element = (FrameworkElement)e.OriginalSource;
if (element is TextBlock)
{
String cat= (String)element.DataContext;
var dog = cat.ToString();
}else{
ItemViewModel cat = element.DataContext as ItemViewModel;
.....
}
}
但新的问题是。。。。怎么页面不刷新了？
ItemViewModel cat = Favorite.SelectedItem as ItemViewModel;
if(cat != null)
{
String dog = cat.LineTwo;
}