我正在創建使用諾基亞Mix Radio SDK的Windows Phone 8應用程序。我有Listbox包含流派。 ListBox中的每個項目(流派)都有CheckBox,因此用戶只能選擇他想要收聽的項目。我如何知道用戶選擇了哪些流派?從列表框中獲取所選項目
這是我的XAML:
<phone:PhoneApplicationPage
x:Class="MusicApp.GenrePage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d"
shell:SystemTray.IsVisible="True">
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel Grid.Row="0" Margin="12,17,0,28">
<TextBlock Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ListBox x:Name="GenresListBox" Grid.Row="0" >
<ListBox.ItemTemplate>
<DataTemplate>
<CheckBox Content="{Binding Name}" HorizontalAlignment="Left" VerticalAlignment="Top"/>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<Button Grid.Row="1" Content="Button" HorizontalAlignment="Left" Name="SelectButton" VerticalAlignment="Top" Click="SelectButton_Click"/>
</Grid>
</Grid>
這裏是我的代碼:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
namespace MusicApp
{
public partial class GenrePage : PhoneApplicationPage
{
public GenrePage()
{
InitializeComponent();
}
private async void GetGenres()
{
var genres = await App.GetClient().GetGenresAsync();
GenresListBox.ItemsSource = genres;
if (genres.Result == null || genres.Count == 0)
{
MessageBox.Show("No results available");
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
GetGenres();
}
private void SelectButton_Click(object sender, RoutedEventArgs e)
{
var selectedGenres = GenresListBox.SelectedItems;
}
}
}
綁定器isChecked到模型中的一個屬性,之後您可以通過列表迭代,看看哪一個被選中。看看這個http://stackoverflow.com/a/22137726/1664356 –