我有listview with binding：
<ListView x:Name="OrdersListView" IsItemClickEnabled="True" SelectionMode="Single"
ItemClick="OrdersListView_ItemClick" SelectedItem="{Binding AllRoundsSelectedItem, Mode=TwoWay}">
我需要点击元素并接收数据。
我是这样做的。
public RootObject allRoundsSelectedItem;
public RootObject AllRoundsSelectedItem
{
get { return allRoundsSelectedItem; }
set { allRoundsSelectedItem = value; OnPropertyChanged();}
}
private void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
var handler = PropertyChanged;
handler?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
private void OrdersListView_ItemClick(object sender, ItemClickEventArgs e)
{
}
当我在此行set { allRoundsSelectedItem = value; OnPropertyChanged();}
我看到我有自己需要的价值。
我尝试在另一个ListView中输入数据。
这里有代码：
<ScrollViewer HorizontalAlignment="Left" Height="667" Margin="415,54,-124,-1" VerticalAlignment="Top" Width="989">
<ListView x:Name="DetailsListView" ItemsSource="{Binding AllRoundsSelectedItem}">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Height="667" Width="989">
<Grid x:Name="DetailGrid" Height="667" Width="989" VerticalAlignment="Top" >
<Grid HorizontalAlignment="Left" Height="44" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock1" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Время и дата заказа" VerticalAlignment="Top" Height="44" Width="214" FontSize="23"/>
<TextBlock x:Name="textBlock2" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding date_created}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,44,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock3" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Статус" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock4" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding status }" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,88,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock5" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Осталось времени" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock6" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,132,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock7" HorizontalAlignment="Left" TextWrapping="Wrap" Text="На когда" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock8" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding billing.city}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,176,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock9" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Сумма" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock10" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding total}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,220,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock11" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Имя" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock12" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding billing.first_name}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,264,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock13" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Телефон" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock14" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding billing.phone}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,308,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock15" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Адрес" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock16" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding billing.address_1}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,352,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock17" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Количество персон" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock18" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="{Binding billing.postcode}" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,396,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock19" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Откуда" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock20" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,440,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock21" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Состав заказа" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock22" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,484,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock23" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Приметка для кухни" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock24" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
<Grid HorizontalAlignment="Left" Height="44" Margin="0,528,0,0" VerticalAlignment="Top" Width="989" BorderBrush="#FFFBF8F8" BorderThickness="0,0,1,1">
<TextBlock x:Name="textBlock25" HorizontalAlignment="Left" TextWrapping="Wrap" Text="Приметка для курьера" VerticalAlignment="Top" Height="44" Width="360" FontSize="23"/>
<TextBlock x:Name="textBlock26" HorizontalAlignment="Left" Margin="500,0,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Height="44" Width="360"/>
</Grid>
</Grid>
</StackPanel></DataTemplate></ListView.ItemTemplate></ListView>
但是有什么表现。
我的麻烦在哪里？
非常感谢你的帮助！
答案 0 :(得分：1)
你的问题不是很清楚，所以我只能猜测你想要达到的目标。看起来您需要某种master-detail界面，其中您从列表中选择一个项目（主），然后另一个表单显示控件，用于编辑该项目的数据（详细信息）。
你的第一个ListView看起来很好（并且绑定可以正常工作）。但是为什么要使用另一个ListView来显示所选项目的详细信息？ ListView用于显示数据列表，但看起来RootObject不是数组或集合类（我可能错了，我不知道类定义）。您可能不应该使用ListView，但无论您使用什么，都应该将AllRoundsSelectedItem绑定到面板的DataSource属性。
答案 1 :(得分：0)
解决方案1：我主要同意@Decade Moon，但对于最后一行，您使用的DataSource没有StackPanel属性，我想这可能是是一个拼写错误，它应该是DataContext。无论如何，在这里我写这个答案来为这个解决方案做一个演示：
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<ListView x:Name="OrdersListView" IsItemClickEnabled="True" SelectionMode="Single"
ItemClick="OrdersListView_ItemClick" SelectedItem="{Binding AllRoundsSelectedItem, Mode=TwoWay}">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding ItemName}" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ScrollViewer Grid.Column="1">
<StackPanel x:Name="Detail" Grid.Column="1" >
<TextBlock Text="{Binding ItemName}" FontSize="30" Foreground="Red" />
<TextBlock Text="{Binding Paramether1}" Margin="0,15" FontSize="20" />
<TextBlock Text="{Binding Paramether2}" FontSize="20" />
<TextBlock Text="{Binding Paramether3}" Margin="0,15" FontSize="20" />
<TextBlock Text="{Binding Paramether4}" FontSize="20" />
<TextBlock Text="{Binding Paramether5}" Margin="0,15" FontSize="20" />
</StackPanel>
</ScrollViewer>
</Grid>
如果您的布局是这样的，那么您可以将大部分代码放在后面，并保存在OrdersListView_ItemClick事件代码中，如下所示：
private void OrdersListView_ItemClick(object sender, ItemClickEventArgs e)
{
AllRoundsSelectedItem = e.ClickedItem as RootObject;
Detail.DataContext = AllRoundsSelectedItem;
}
解决方案2：如果您仍想使用ListView来显示详细信息，那么可以选择它们还是其他内容，您可以使用以下代码：
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<ListView x:Name="OrdersListView" IsItemClickEnabled="True" SelectionMode="Single"
ItemClick="OrdersListView_ItemClick" SelectedItem="{Binding AllRoundsSelectedItem, Mode=TwoWay}">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding ItemName}" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<ListView x:Name="DetailsListView" ItemsSource="{Binding AllRoundsSelectedItem}" Grid.Column="1">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding}" FontSize="20" />
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
AllRoundsSelectedItem的类型应为List或OberservableCollection，这意味着您需要修改后面的代码，例如：
public sealed partial class MainPage : Page, INotifyPropertyChanged
{
public MainPage ()
{
this.InitializeComponent();
this.DataContext = this;
}
private ObservableCollection<RootObject> collection = new ObservableCollection<RootObject>();
protected override void OnNavigatedTo(NavigationEventArgs e)
{
for (int i = 0; i < 100; i++)
{
collection.Add(new RootObject
{
ItemName = "Item " + i,
Paramether1 = "Paramether1 " + i,
Paramether2 = "Paramether2 " + i,
Paramether3 = "Paramether3 " + i,
Paramether4 = "Paramether4 " + i,
Paramether5 = "Paramether5 " + i,
});
}
OrdersListView.ItemsSource = collection;
}
public ObservableCollection<string> allRoundsSelectedItem;
public event PropertyChangedEventHandler PropertyChanged;
public ObservableCollection<string> AllRoundsSelectedItem
{
get { return allRoundsSelectedItem; }
set
{
allRoundsSelectedItem = value;
OnPropertyChanged();
}
}
private void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
var handler = PropertyChanged;
handler?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
private void OrdersListView_ItemClick(object sender, ItemClickEventArgs e)
{
var item = e.ClickedItem as RootObject;
AllRoundsSelectedItem = new ObservableCollection<string>
{
item.ItemName,item.Paramether1,
item.Paramether2, item.Paramether3,
item.Paramether4, item.Paramether5,
};
}
}
就我而言，RootObject类是这样的：
public class RootObject
{
public string ItemName { get; set; }
public string Paramether1 { get; set; }
public string Paramether2 { get; set; }
public string Paramether3 { get; set; }
public string Paramether4 { get; set; }
public string Paramether5 { get; set; }
}
可能还有其他解决方案，但您需要修改xaml代码或AllRoundsSelectedItem的数据类型。