binding

问题 Will it be possible for windows xp or windows server 2003 to support net.tcp for WCF, well it works in windows server 2008 as IIS 7.0 supports net.tcp,but is there anyway for IIS 5.1 or IIS 6.0 to support net.tcp,is there any workaround for this? 回答1: No, you will have to host it yourself (windows service for example) to use net.tcp. See this article for a list of hosting options and what transports they can host. 回答2: I don't believe you can host non-HTTP bindings in IIS 6.0. In IIS 7.0 you

问题 In Angular 7, when the property of a value emitted by an Observable is bound to the input of a child component, is it expected that the input value gets updated (and ngOnChanges invoked) even when the bound property has not changed? Given the following observable that simply emits a new object with identical properties every second: const source$ = interval(1000).pipe(map(() => ({ prop: 'something' }))); this.obs$ = source$; Then bind a property of the emitted value to a child component:

问题 I've read through the WPF Data Binding Overview and I feel like this should be possible but I can't quite make the mental leap here. I know that if I set a binding's Path to foo , and set the Source to obj , then the binding will look at obj.foo . In other words, obj.__getattr__() will be accessed. All I want is to make it look at obj[foo] instead. I'm using Ironpython and in this case my obj class has an overridden __getitem__() that calls a member function and returns a value, which is why

问题 I have a button inside a listbox. I want to bind the command to the DataContext of the Main Grid. I'm not sure who to do this, below is my attempt. I want to bind to ViewModel.SelectionEditorSelectionSelectedCommand on my view model, which the main grid is bound to, I don't want to bind to the actual filteredSelection.SelectionEditorSelectionSelectedCommand Here is my XAML <Grid Name="MainGrid"> ..... <ListBox x:Name="MarketsListBox" Height="Auto" MaxHeight="80" ItemsSource="{Binding Path

问题 Unfortunately I don't know how to make an MVVM Modern app work in Fiddle so I'll have to post my code here, but here's a simple app that demonstrates the problem I'm having. App.js Ext.application({ extend: 'simple.Application', name: 'simple', requires: [ // This will automatically load all classes in the simple namespace // so that application classes do not need to require each other. 'simple.*' ], // The name of the initial view to create. mainView: 'simple.view.main.Main' }); app

问题 Learning WPF with a small editor project and designing it with MVVM in mind. The following code is throwing "Provide value on 'System.Windows.Data.Binding' threw an exception." at run time when the XAML is first parsed. No Build errors. How best to bind my ICommands to Application Commands Close, Save, Save As, Open, New etc. Currently I have just the Close and New setup. XAML Code: <Window x:Class="Editor.Views.EditorView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

问题 ok please be gentle, I am new to WPF and LINQ - I have a strange problem here. I have a search screen and an add/edit screen. I have the add/edit screen bound to a 'CompanyContact' object and a search screen bound to a collection (CompanyContacts). I have a 3 column unique constraint (FirstName, LastName, CompanyId) on the CompanyContact db table so you can't have the same name appear twice for the same company. I should also mention that I have an "AFTER UPDATE" trigger on CompanyContact

问题 I want to draw lines between ScatterViewItems but it doesn't work with what I already found here. There is a Line, but not connected to the center of the ellipses. Does anybody see my mistake? Here is what I have: <Grid> <s:ScatterView> <s:ScatterViewItem Height="250" Width="500" Background="Transparent" Orientation="0" HorizontalAlignment="Right" Margin="0,70,-764,-70" d:LayoutOverrides="HorizontalAlignment, Width"> <s:ScatterView Height="250" Width="500" Background="BlueViolet"> <s

问题 I am working with a Point Grey camera (Grasshopper3) and I analyse the images using OpenCV in Python. Point Grey cameras come with an API in C named flycapture. I found python bindings for the flycapture v2 api on GitHub (pyflycapture2) and they provide installation instructions for Unix systems, but since I'm on Windows, I cannot use the awesome apt-get command. Here is the instructions provided: mkdir ~/git cd ~/git git clone https://github.com/peterpolidoro/pyflycapture2.git sudo apt-get

问题 My question seems rather simple: How can one add custom headers to a data bound DataGrid in WPF? Why am I asking this question? Well, because I've fitted my DataGrid (which is generated in code-behind) with a dynamic itemssource, bound to an ienumerable 'list'. This works perfectly fine, although it uses the property names as column headers. To improve readability I simply want to assign custom headers to the columns, however... My idea was to supply a datagrid with the columns already