我想知道是否有人可以解释将集合的选定值绑定到组合框之间的区别。
或将值绑定到按钮内容。
像那样
<ComboBox x:Name="_culturedTitleViewModelSelector" Visibility="Hidden" Style="{StaticResource ResourceKey=_culturedTitleViewModelSelectorStyle}"
ItemsSource="{Binding Path=AvailableCultures, Source={x:Static Localized:ResourcesManager.Current}}"
SelectedValue="{Binding Path=CurrentCulture, Source={x:Static Localized:ResourcesManager.Current}}"
<Button x:Name="LanguageBtn" Content="{Binding Path=CurrentCulture, Source={x:StaticLocalized:ResourcesManager.Current}}"
问题是如果我不在那里使用 ComboBox,则不会调用我在另一个类中的 DependencyProperty。
但是,如果我使用组合框,一切正常......尽管组合框没有做任何事情,它只是一个“workarround”在我的 CS 代码中,当我点击我的按钮时,我会这样做:
ResourcesManager.Current.SwitchToNextCulture();
//We use a dummy comboBox to make sure the LanguageBehavior Property is being notified.
_culturedTitleViewModelSelector.SelectedItem = ResourcesManager.Current.CurrentCulture;
如果我不将组合框的 SelectedItem 设置为另一种文化。我的 languageBehavior 课程没有收到通知。
:
public class LanguageBehavior
{
public static DependencyProperty LanguageProperty =
DependencyProperty.RegisterAttached("Language",
typeof(string),
typeof(LanguageBehavior),
new UIPropertyMetadata(OnLanguageChanged));
public static void SetLanguage(FrameworkElement target, string value)
{
target.SetValue(LanguageProperty, value);
}
public static string GetLanguage(FrameworkElement target)
{
return (string)target.GetValue(LanguageProperty);
}
private static void OnLanguageChanged(DependencyObject target, DependencyPropertyChangedEventArgs e)
{
var element = target as FrameworkElement;
if (e.NewValue!=null)
element.Language = XmlLanguage.GetLanguage(e.NewValue.ToString());
}
}
我希望 ComboBox Content 的工作方式与 Button Content 相同。
在我的 Generic.Xaml 中,我这样做:
<Style TargetType="{x:Type TextBlock}" x:Key="_textBlockLanguageProperty">
<Setter Property="WpfServices:LanguageBehavior.Language" Value="{Binding Path=CurrentCulture, Source={x:Static Localized:ResourcesManager.Current}}"
/>
</Style>
这就是 CurrentCulture
public CultureInfo CurrentCulture
{
get { return CultureProvider.Current; }
set
{
if (value != CultureProvider.Current)
{
CultureProvider.Current = value;
OnCultureChanged();
}
}
}
当前的 :
public static ResourcesManager Current
{
get
{
if (_resourcesManager == null)
{
var cultureProvider = new BaseCultureProvider();
_resourcesManager = new ResourcesManager(cultureProvider);
_resourcesManager.Init();
}
return _resourcesManager;
}
}
编辑 :
我的 _culturedTitelViewModelSelectorStyle 是
<Style TargetType="{x:Type ComboBox}" x:Key="_culturedTitleViewModelSelectorStyle">
<Setter Property="DisplayMemberPath" Value="DisplayName" />
<Setter Property="SelectedValuePath" Value="." />
<Setter Property="HorizontalAlignment" Value="Right" />
<Setter Property="MaxHeight" Value="40" />
<Setter Property="FontSize" Value="20" />
<Setter Property="Margin" Value="5" />
<Setter Property="SelectedIndex" Value="0" />
<Setter Property="IsSynchronizedWithCurrentItem" Value="True" />
</Style>