从列表框中单击项目获取数据 [英] Get data from clicked item in ListBox

问题描述

我是新来的Windows Phone，

我有一个列表框，在它的TextBlocks，我想在列表框来从所选项目的所有数据。

下面是我的代码片段：

.XAML文件

 <列表框的Horizo​​ntalAlignment =左NAME =ListBox1中的ItemsSource ={结合}保证金=9,10,0,0的SelectionChanged = listBox1_SelectionChanged> 
< ListBox.ItemTemplate> 
<&DataTemplate的GT; 
< StackPanel的保证金=0,0,0,5> 
<图像的Horizo​​ntalAlignment =左HEIGHT =100保证金=0,15,0,0VerticalAlignment =顶，/> 
< TextBlock的文本={结合AttractionName }前景=黄色保证金=120，-110,0,0/> 
< TextBlock的文本=价格：前景=白TextWrapping =自动换行字号=30/> 
< TextBlock的文本=£前景=绿色TextWrapping =自动换行字号=40保证金=200，-50,12,0/> 
< TextBlock的文本={结合价格}前景=绿字号=40/> 
<线X1 =0X2 =420Y1 =10 Y2 =10行程=白VerticalAlignment =底/> 
< / StackPanel的> 
< / DataTemplate的> 
< /ListBox.ItemTemplate> 
< /列表框> 
  

.cs文件

 无效listBox1_SelectionChanged（对象发件人，SelectionChangedEventArgs参数）
 {
的Debug.WriteLine（您选择了+ listbox1.SelectedItem的ToString（））; 
} 
  

我的控制台显示输出是这样的：您选择Appname.Pagename.methodname

这势必列表框

级

 公共类景点{
 [JsonProperty（AttractionName）] 
公共字符串AttractionName {获取;集;} 
 [JsonProperty（IphoneImage ）] 
公共字符串IphoneImage {搞定;组; } 
 [JsonProperty（价格）]公共字符串价格{搞定;组; } 
} 
  

解决方案

有以几种方法做到这一点：

 私人无效listBox1_SelectionChanged（对象发件人，SelectionChangedEventArgs参数）
 {
如果（listBox1中。的SelectedIndex == -1）回报; 
 
景点第一= listbox1.SelectedItem的景点; 
景点秒=（景点）listBox1.Items [listBox1.SelectedIndex] 
景点第三=（发件人为列表框）.SelectedItem的景点; 
景点第四= args.AddedItems [0]作为景点; 
 
的Debug.WriteLine（您选择了+ first.AttractionName）; 
} 
  

使用的SelectedItem（索引）你那是你的ItemsSource集合类型的项目。一旦你的项目，你可以做你想做的事情是什么。

I am new to Windows Phone,

I have one listbox with textblocks in it, I want to fetch all data from selected item in listbox.

Here is my code snippet:

.xaml file

 <ListBox HorizontalAlignment="Left" Name="listbox1" ItemsSource="{Binding}" Margin="9,10,0,0" SelectionChanged="listBox1_SelectionChanged">
              <ListBox.ItemTemplate>
                    <DataTemplate>
                            <StackPanel Margin="0,0,0,5">
                                 <Image HorizontalAlignment="Left" Height="100" Margin="0,15,0,0" VerticalAlignment="Top""/>
                                 <TextBlock Text="{Binding AttractionName}" Foreground="Yellow" Margin="120,-110,0,0""/>
                                 <TextBlock Text="Price:" Foreground="White" TextWrapping="Wrap" FontSize="30""/>
                                 <TextBlock Text="£" Foreground="Green" TextWrapping="Wrap" FontSize="40" Margin="200,-50,12,0""/>
                                 <TextBlock Text="{Binding price}" Foreground="Green" FontSize="40""/>
                                 <Line X1="0" X2="420" Y1="10" Y2="10" Stroke="White" VerticalAlignment="Bottom"/>
                        </StackPanel>
                    </DataTemplate>
              </ListBox.ItemTemplate>
</ListBox>

.cs file

    void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs args)
    {
        Debug.WriteLine(" You selected " +listbox1.SelectedItem.ToString());
    }

My console shows output this way: You selected Appname.Pagename.methodname

Class which is bound to ListBox

    public class Attractions { 
[JsonProperty("AttractionName")]
 public string AttractionName { get; set; }
[JsonProperty("IphoneImage")] 
public string IphoneImage { get; set; } 
[JsonProperty("price")] public string price { get; set; } 
}

解决方案

There are few ways to do it:

private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs args)
{
    if (listBox1.SelectedIndex == -1) return;

    Attractions first = listbox1.SelectedItem as Attractions ;
    Attractions second = (Attractions)listBox1.Items[listBox1.SelectedIndex];
    Attractions third = (sender as ListBox).SelectedItem as Attractions;
    Attractions fourth = args.AddedItems[0] as Attractions;

    Debug.WriteLine(" You selected " + first.AttractionName);
}

With SelectedItem (Index) you get an item that is Type of your ItemsSource Collection. Once you get the item you can do what you want with it.

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