无法获取选定的列表框

Question

这是我要提取enjoymentID的图片

我想从数据绑定的选定项目中提取enjoymentID，但我尝试在web中可用的所有方式仍然无法提取它由于invalidCastException。有没有人可以帮我解决这个问题？紧急。谢谢= D

    private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        SuperData data = (sender as ListBox).SelectedItem as SuperData;
        ListBoxItem selected = this.listBox1.ItemContainerGenerator.ContainerFromItem(data) as ListBoxItem;
    }

我试过这个，还有e.AddedItem [0]，但仍然无法得到它。

<Grid>
                <ListBox HorizontalAlignment="Stretch" Margin="0,0,0,0" Name="listBox1" VerticalAlignment="Stretch" SelectionChanged="listBox1_SelectionChanged">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel Orientation="Horizontal" Height="132">
                                <Image Source="{Binding image}" Height="73" Width="73" VerticalAlignment="Top" Margin="0,10,8,0"/>
                                <StackPanel Width="370">
                                    <TextBlock Text="{Binding title}" Foreground="#FFC8AB14" FontSize="28" />
                                    <!--TextBlock Text="{Binding Message}" TextWrapping="Wrap" FontSize="24" /-->
                                    <TextBlock Text="{Binding description}" TextWrapping="Wrap" FontSize="24" />
                                    <TextBlock Text="Test" TextWrapping="Wrap" FontSize="24" />
                                </StackPanel>
                            </StackPanel>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </Grid>

这是我绑定数据的UI部分。从WCF返回的是 List 数据类型，我只是使用 listBox1.ItemsSource = e.Result; 绑定到列表框。

    public int category { get; set; }
    public int categoryField { get; set; }
    public string description { get; set; }
    public string descriptionField { get; set; }
    public int enjoymentID { get; set; }
    public int enjoymentIDField { get; set; }
    public string image { get; set; }
    public string imageField { get; set; }
    public object PropertyChanged { get; set; } << i don't know what is this
    public string title { get; set; }
    public string titleField { get; set; }

这是e.AddedItem [0]内的内容也= D

Answer 1

从您的屏幕截图中，数组的第一项的类型是RoyalEnjoyment.REServiceReference.REData，如果您将e.AddedItems [0]强制转换为此类型，那么您应该能够访问各种属性值。< / p>

例如，RoyalEnjoyment.REServiceReference.REData x =（RoyalEnjoyment.REServiceReference.REData）e.AddedItems [0];