dependency-properties

问题 So i have a UserControl for one of my Views and have another 'child' UserControl inside that. The outer 'parent' UserControl has a Collection on its View-Model and a Grid control on it to display a list of Items . I want to place another UserControl inside this UserControl to display a form representing the details of one Item . The parent UserControl's View-Model already has a property on it to hold the currently selected Item and i would like to bind this to a DependancyProperty on the

问题 In C# UWP I am creating custom tooltip style. I have changed the default style of tooltip as below. <Style TargetType="ToolTip"> <Setter Property="Foreground" Value="White" /> <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundChromeMediumLowBrush}" /> <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundChromeHighBrush}" /> <Setter Property="BorderThickness" Value="{ThemeResource ToolTipBorderThemeThickness}" /> <Setter Property="FontSize" Value

问题 I tried to solve almost same problem: "How to Expose a DependencyProperty of a Control nested in a UserControl?" The difference is that I have different (2 or more) nested Controls with of the same type . My goal is to make the nested DependencyProperties bindable. The main Problem I am facing is that Binding don't uses the the Getter and Setter of the CLR-Property but the String of the registererd DependencyProperty . With 2 (or more) nested Controls I am facing a naming conflict. To

问题 I am building a number of Custom Activities in Windows Workflow and I need to add a DependencyProperty which can list a number of values for that property which the user can then select when using the activity. e.g. True or False. I know how to simply pass a default using the PropertyMetadata, and presume that I will have to pass a list/class now the PropertyMetadata? Has anyone already got an example of how to do this please? (Example Code below) public static DependencyProperty TestProperty

问题 I have the following set up: Custom WPF Control (Base class), deriving from Canvas Implementation of that base class An ObservableCollection<T> dependency property on that implementation I have a test app that displays three unique instances of my custom control (e.g. <custom:MyControl x:Name="Test1" /> , Test2, Test3, and so on). When I run and debug the app, the contents of the ObservableCollection<T> are the same for all three instances of the control. Why is this? Chart: [ContentProperty(

问题 I have the following set up: Custom WPF Control (Base class), deriving from Canvas Implementation of that base class An ObservableCollection<T> dependency property on that implementation I have a test app that displays three unique instances of my custom control (e.g. <custom:MyControl x:Name="Test1" /> , Test2, Test3, and so on). When I run and debug the app, the contents of the ObservableCollection<T> are the same for all three instances of the control. Why is this? Chart: [ContentProperty(

问题 Suppose I have a ViewModel TabViewModel that Extends ObservableObject the class for ViewModels in the MVVM Foundation Framework. Then I also have a EditorTabViewModel that extends TabViewModel , Now I need to extend DependencyObject to implement DependencyProperties. I cannot extend more than 1 class. How might I implement this? I could have an "intermediate" class like ... TabViewModel : ObservableObject EditorTabViewModel : TabViewModel DependentEditorTabViewModel : DependencyObject but

问题 I have a CustomControl which contains a ListBox : <UserControl x:Class="WpfApplication1.CustomList" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300"> <Grid> <ListBox Name="listBox1" ItemsSource="{Binding ListSource}" /> </Grid> <

问题 I have a UserControl with a Template property that I've set up as a DependencyProperty : public partial class TemplateDetail : UserControl { public static readonly DependencyProperty _templateProperty = DependencyProperty.Register( "Template", typeof(Template), typeof(TemplateDetail) ); public TemplateDetail() { InitializeComponent(); Template = new Template(); DataContext = Template; } public Template Template { get { return (Template)GetValue(_templateProperty); } set { SetValue(

问题 I have an ugly race condition with a WPF usercontrol, which is some kind of extended ComboBox: The UserControl mainly defines two bindable DependencyProperties, one is the selected item, another one is a list, from which the selected item can be chosen. Both are bindable, so the control may be initialized with or without a selected item and both properties can be changed via binding (on DataContext change), further the selection may change due to user interaction. The UserControl contains a