如何获取组合框WPF内的复选框的值？

问题描述：

我有一个组合框，复选框存在于组合框内。我想要多选复选框的值。我的代码：如何获取组合框WPF内的复选框的值？

<ComboBox Name="LocationFilterComboBox" Width="100" SelectedItem="{Binding LocationValue}"> 
    <ComboBox.ItemTemplate > 
     <DataTemplate> 
     <StackPanel Orientation="Horizontal" > 
      <CheckBox Content="{Binding LocationValue}" IsChecked="{Binding ElementName=all, Path=IsChecked, Mode=TwoWay}" Width="120" /> 
     </StackPanel> 
     </DataTemplate> 
    </ComboBox.ItemTemplate> 
</ComboBox>

后端代码：

//code to get the value 
public partial class Location 
{ 
    #region Property 
    private string LOCAID; 
    public string LocaId 
    { 
     get 
     { 
      return LOCAID; 
     } 
     set 
     { 
      value = LOCAID; 
     } 
    } 

    private string LOCADESC; 
    public string LocationValue 
    { 
     get 
     { 
      return LOCADESC; 
     } 
     set 
     { 
      value = LOCADESC; 
     } 
    } 
    #endregion 
} 
} 

//code for binding the location 
public IList<Location> BindAllLocation() 
{ 
    if (Repository != null) Repository.Dispose(); 
    Repository = GetInvoiceRepository(); 
    IList<Location> locationList = Repository.GetLocations(((App)Application.Current).DataContextFactory); 

    return locationList; 
} 

private void Window_Loaded(object sender, RoutedEventArgs e) 
{ 
    LocationFilterComboBox.ItemsSource = BindAllLocation(); 
}

我不明白你的问题。您已经在使用绑定。你的价值应该在属性'IsChecked'假设你的绑定;） –

一个共享的代码示例我怎样才能检索被检查的项目@MightyBadaboom –

@AkhilJain请发布代码，我们可以使用的示例。 – lightlike

答

我不会直接设置的ItemsSource。尝试结合它：

private ObservableCollection<Location> _locationList = new ObservableCollection<Location>(); 
public ObservableCollection<Location> LocationList 
{ 
    get { return _locationList; }; 
    set 
    { 
     if (_locationList == value) 
      return; 
     _locationList = value; 
     OnPropertyChanged(); 
} 

private Location _currentLocation; 
public Location CurrentLocation 
{ 
    get { return _currentLocation; }; 
    set 
    { 
     if (_currentLocation == value) 
      return; 
     _currentLocation = value; 
     OnPropertyChanged(); 
} 

public IList BindAllLocation() 
{ 
    if (Repository != null) Repository.Dispose(); 
     Repository = GetInvoiceRepository(); 
    IList<Location> locationList = Repository.GetLocations(((App)Application.Current).DataContextFactory); 
    return locationList; 
} 

private void Window_Loaded(object sender, RoutedEventArgs e) 
{ 
    foreach (var item in BindAllLocation()) 
     LocationList.Add(item); 
}

在XAML：

<ComboBox ItemsSource="{Binding *binding to LocationList*}" Width="100" SelectedItem="{Binding CurrentLocation}"> 
    <ComboBox.ItemTemplate > 
     <DataTemplate> 
      <StackPanel Orientation="Horizontal" > 
       <CheckBox Content="{Binding LocationValue}" IsChecked="{Binding IsChecked, Mode=TwoWay}" Width="120" /> 
      </StackPanel> 
     </DataTemplate> 
    </ComboBox.ItemTemplate> 
</ComboBox>

我不知道在DataContext的组合框，所以如果你有试图this问题。

然后你就可以使用理清选择的值：

var result = LocationList.Where(x => x.IsChecked);

当然，你必须有一个物业器isChecked为。

答

由于每个CheckBox在ComboBox的IsChecked属性绑定到的“所有” CheckBox的IsChecked属性，你应该能够直接从这个获得的价值：

bool isChecked = all.IsChecked;

另一种选择本来是一个bool属性添加到Location类，并绑定到这一个：

<CheckBox Content="{Binding LocationValue}" IsChecked="{Binding IsChecked}" Width="120" />

然后，您可以得到通过简单地遍历其ItemsSource中ComboBox每一个人CheckBox的价值：

foreach(var location in LocationFilterComboBox.Items.OfType<Location>()) 
{ 
    bool isChecked = location.IsChecked; 
}

如何获取组合框WPF内的复选框的值？

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