Linq 联合查询 不能绑定到 ListBox,该如何解决

            var query = from o in UserModel.GetInstance().DB.DBUsers                        join p in UGroupModel.GetInstance().DB.DBUGroups                        on o.ID equals p.ID                        select new                        {                            o.ID,                            o.Name,                            o.Age,                            p.Desc                        };            //var query = from UGroupTable user in UGroupModel.GetInstance().DB.DBUGroups            //            select user; //使用这句话可以成功绑定到ListBox            int RecCount = query.Count(); //[color=#FF0000]这里的RecCount是大于0的，证明读到值了[/color]                        foreach (var t in query)            { //[color=#FF0000]这里也能看到t里是有值的[/color]            }            listBox3.ItemsSource = query.ToList();

            <ListBox  Height="Auto" HorizontalAlignment="Left" Margin="0,300,0,0" Name="listBox3" VerticalAlignment="Top" Width="Auto">                <ListBox.ItemTemplate>                    <DataTemplate>                        <StackPanel>                            <TextBlock Text="{Binding Path=ID}"/>                            <StackPanel Orientation="Horizontal">                                <TextBlock Text="{Binding Path=Name}"/>                                <TextBlock Text="{Binding Path=Age}" />                                <TextBlock Text="{Binding Path=Desc}" />                            </StackPanel>                        </StackPanel>                    </DataTemplate>                </ListBox.ItemTemplate>            </ListBox>