dependency-properties

问题 I have a weird error I'm trying to debug with no luck. I have subclassed hwndhost showing some content, I have the following function in that class to set to fullscreen: private void SetFullScreen(bool enable) { if (enable) { fs = new Window(); fs.ResizeMode = ResizeMode.NoResize; fs.WindowState = System.Windows.WindowState.Maximized; fs.WindowStyle = System.Windows.WindowStyle.None; fs.Topmost = true; fs.PreviewKeyDown += delegate(object sender, KeyEventArgs e) { if (e.Key==Key.Escape)

问题 I have a weird error I'm trying to debug with no luck. I have subclassed hwndhost showing some content, I have the following function in that class to set to fullscreen: private void SetFullScreen(bool enable) { if (enable) { fs = new Window(); fs.ResizeMode = ResizeMode.NoResize; fs.WindowState = System.Windows.WindowState.Maximized; fs.WindowStyle = System.Windows.WindowStyle.None; fs.Topmost = true; fs.PreviewKeyDown += delegate(object sender, KeyEventArgs e) { if (e.Key==Key.Escape)

问题 I have been reading about dependency properties in several books but all have one thing in common, they just tell us how they are implemented( using static readonly DependencyProperty etc.) but does not tell the exact way they work from inside. I mean they are implemented as static but still applies to all objects. Second point of confusion is attached properties. Is there any tutorial available that can explain all these concepts in an easy way? 回答1: My mental model of how dependency

问题 I understand that dependencies properties serve a major purpose in WPF. However I do not get the reasons behind the restriction that in binding, the target property must be a dependency property. Why can't it be any property? 回答1: If you're interested, you might open up Reflector and take a look at some of the code related to dependency properties and the binding system in the framework. There is a lot of tricky stuff going on to allow robust, performant resolution of property paths and

问题 I've some simple code below that uses a ToggleButton.IsChecked property to set the Visibility of a TextBlock. It works fine. Since this doesn't quite fit in with my program's structure, I'm trying to bind the visibility of another TextBlock to a DependencyProperty of "this". It compiles fine, but it produces no effect. I'm doing something wrong, just not sure what. XAML <Window x:Class="ToggleButtonTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x=

问题 I'm developing a basic dip-switch user control as a personal learning exercise. Originally I had it set up where you could declare some custom color properties on the user control, and they would be used on elements inside the control. However, I recenly discovered ToggleButtons, and rebuilt my control to take advantage of them. Since then, my custom color properties (SwitchColor and SwitchBkgndColor) no longer work properly. They are always rendered with the default colors, not the colors I

问题 I have a simple class derived from Button with a dependency property: public sealed class CircleButton : Button { public Visual Visual { get { return (Visual)GetValue(VisualProperty); } set { SetValue(VisualProperty, value); } } public static readonly DependencyProperty VisualProperty = DependencyProperty.Register("Visual", typeof(Visual), typeof(CircleButton)); } I have the following style for the CircleButton: <Style x:Key="CircleButtonStyle" TargetType="{x:Type controls1:CircleButton}"> ..

问题 is it because the controls programmers are lazy, too hard to implement or not knowledgeable? Wether they are custom controls from 3rd party vendors or Microsoft itself, very much controls have often clr properties instead of DP. Result is I can not bind to them and is wpf not all about binding? :/ My next side question would be, why do so many wpf controls offer visual parts but they are not member of the visual tree ? see wpf datagrid columns, headers... What do you think? 回答1: You don't

问题 So i have this issue: I have created a UserControl (basically a textbox and label). This user control I am able to Bind using a Dependency Property. I have a ListView in which I can put a textbox in the datatemplate and bind the "text" property to the binded value. so far so good. but now if I try to put the UserControl into that very same scenario the DependencyProperty stops working. Here is the code: [ListView] <ListView x:Name="DtContactDetailListView" ItemsSource="{Binding}"> <ListBox

问题 I have a Textbox in a User Control i'm trying to update from my main application but when I set the textbox.Text property it doesnt display the new value (even though textbos.Text contains the correct data). I am trying to bind my text box to a property to get around this but I dont know how, here is my code - MainWindow.xaml.cs outputPanel.Text = outputText; OutputPanel.xaml <TextBox x:Name="textbox" AcceptsReturn="True" ScrollViewer.VerticalScrollBarVisibility="Visible" Text="{Binding <!--?