C# 更新依赖项属性/AttachedProperty中的普通属性,
我试图绑定AvalonDock的正常属性 xmlns:xcad=”http://schemas.xceed.com/wpf/xaml/avalondock"C# 更新依赖项属性/AttachedProperty中的普通属性,,c#,wpf,xaml,binding,dependency-properties,C#,Wpf,Xaml,Binding,Dependency Properties,我试图绑定AvalonDock的正常属性 xmlns:xcad=”http://schemas.xceed.com/wpf/xaml/avalondock" this.IsVisible=值//无效 } } private static void OnCanHideChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { ((ExtendedAnchor
this.IsVisible=值代码>
//无效
}
}
private static void OnCanHideChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
((ExtendedAnchorableItem)d).Hide();
}
}
XAML
<xcad:LayoutAnchorablePane>
<Utility:ExtendedAnchorableItem IsCanHide="{Binding IsHideExplorer}">
<Views:ExplorerView DataContext="{Binding ExplorerViewModel}"/>
</Utility:ExtendedAnchorableItem>
</xcad:LayoutAnchorablePane>
类似地,我尝试创建了一个AttachedProperty
,它可以将它挂接到LayoutAccorable
上,但是PropertyChangedCallback
从未被要求回答我发布的新问题
有什么帮助吗?我做了,在我之前的例子中,我需要创建带有两个图像的新按钮,一个是当按钮可用时,另一个是当它被禁用时,要做到这一点,首先我创建了名为“MyButton”的新用户控件,我的xaml是这样的
<Button ToolTip="{Binding ButtonLabel,RelativeSource={RelativeSource AncestorType=UserControl,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged}"
Command="{Binding ButtonCommand,RelativeSource={RelativeSource AncestorType=UserControl,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged}"
Cursor="Hand" VerticalAlignment="Center" >
<Button.Template>
<ControlTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="45"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Image Name="ButtonImage" IsEnabled="{Binding Path=IsEnabled,RelativeSource={RelativeSource AncestorType=Button,Mode=FindAncestor}}" >
<Image.Style>
<Style TargetType="{x:Type Image}">
<Style.Triggers>
<Trigger Property="IsEnabled" Value="True">
<Setter Property="Source" Value="{Binding ActiveImage,RelativeSource={RelativeSource AncestorType=UserControl,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Source" Value="{Binding DeactiveImage,RelativeSource={RelativeSource AncestorType=UserControl,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged}"/>
</Trigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<Label Name="LabelContent" Content="{Binding ButtonLabel,RelativeSource={RelativeSource AncestorType=UserControl,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged}"
Grid.Column="1" IsEnabled="{Binding Path=IsEnabled,RelativeSource={RelativeSource AncestorType=Button,Mode=FindAncestor}}" VerticalContentAlignment="Center" />
</Grid>
</ControlTemplate>
</Button.Template>
</Button>
然后我在我的项目中使用了这个新控件
<custom:MyButton ButtonCommand="{Binding DecreaseImagesCount}" ButtonLabel="ZoomIn" ActiveImage="/Images/ActiveImages/ZoomIn.png" DeactiveImage="/Images/GrayImages/ZoomIn.png"
Grid.Column="2" Margin="3,4" />
请注意,我现在可以为按钮图像绑定路径了是的,您可以。。您需要实现INotifypropertyChanged接口,并在属性设置器内引发PropertyChanged事件。将属性更改为DependencyProperty后,您将获得通知机制,因此属性更改将传播到目标(在本例中为xcad)
您可以找到许多实现INotifyPropertyChanged..的示例,如果您只需从视图模型中设置该属性就足够了,那么您可以使用附加的行为。 只需创建一个新类并添加一个类似这样的附加属性(我没有真正测试它,因为我实际上手头没有AvalonDock,但您应该明白这一点): 现在,您应该能够像这样使用该行为:
<xcad:LayoutAnchorable Title="Folder" namespacealias:YourBehavior.YourCanHideProperty="{Binding IsHideExplorerView}"/>
如果您想让它在两个方向上都工作,只需查看附加的混合行为。我无法控制
xcad
作为一个外部dll。您能解释一下如何使用AvalonDock,我是否需要创建一个新类,该类将扩展layoutunachrable
,然后添加一个依赖项属性
。您可以在此用户控件中创建一个新的用户控件,在xaml中添加AvalonDock,然后添加此依赖项属性,如果您遇到任何问题,我可以发送给示例。如果您能在答案中添加示例,我将不胜感激。我理解您所做的,但我的问题是,我有一个名为CanHide
的Normal属性,我无法绑定该属性,因为它是Normal属性,如何使其Bindable
。我不清楚从你的例子中你在哪里做了那个场景。尝试创建新的控件,在它里面使用avalondock,给这个控件命名,然后创建新的依赖属性,当它改变时,你可以修改“canHide”值,从后面的代码,从外面你将使用你的新属性,它是可绑定的,我希望你明白:)很好,我会看看它,让你知道它是否有效。谢谢。我试过像你提到的那样使用AttachedProperty
,但是属性ChangedCallback
从未被调用,我已经将该行为附加到DockPanel
上,它可以工作,甚至我也附加到了AvalonDock的DockingManager
,它可以工作,但不在LayoutAnchorable
上有什么建议吗?
public static DependencyProperty activeImage =
DependencyProperty.Register("ActiveImage", typeof(type of this property like "string"), typeof(type of the custom control that you need like "MyButton"), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));
public string ActiveImage
{
get { return (string)GetValue(activeImage); }
set { SetValue(activeImage, value); }
}
<custom:MyButton ButtonCommand="{Binding DecreaseImagesCount}" ButtonLabel="ZoomIn" ActiveImage="/Images/ActiveImages/ZoomIn.png" DeactiveImage="/Images/GrayImages/ZoomIn.png"
Grid.Column="2" Margin="3,4" />
public class YourBehavior
{
public static readonly DependencyProperty YourCanHideProperty = DependencyProperty.RegisterAttached(
"YourCanHide",
typeof(bool),
typeof(LayoutAnchorable),
new PropertyMetadata(YourCanHidePropertyChanged));
private static void YourCanHidePropertyChanged(
DependencyObject dependencyObject,
DependencyPropertyChangedEventArgs e)
{
LayoutAnchorable control = dependencyObject as LayoutAnchorable;
if (control != null)
{
control.CanHide = e.NewValue as bool;
}
}
public static bool GetYourCanHideProperty(LayoutAnchorablewindow)
{
return window.GetValue(YourProperty) as bool?;
}
public static void SetYourCanHideProperty(LayoutAnchorable control, bool value)
{
window.SetValue(YourProperty, value);
}
}
<xcad:LayoutAnchorable Title="Folder" namespacealias:YourBehavior.YourCanHideProperty="{Binding IsHideExplorerView}"/>