binding

问题 I want to set the UpdateSourceTrigger to an event of a control: <TextBox Text="{Binding Field, UpdateSourceMode=btnOK.Click}"> <Button Name="btnOK"> <Button.Triggers> <Trigger> <!-- Update source --> </Trigger> </Button.Triggers> </Button> I thought about two ways: Set UpdateSourceMode or some other stuff in the binding. Set an EventTrigger that updates source on button click. Possible, or I have to do it with code? 回答1: You'll have to use code. Specifically: Set UpdateSourceTrigger=Explicit

问题 I have the following XAML: <sdk:Label Content="{Binding RefreshTextToggle, Converter={StaticResource enumToText}, ConverterParameter=ItemsOfInterest,FallbackValue='Please select items of interest to you'}" Style="{StaticResource StandardLabel}" Height="{Binding ElementName=ItemsOfInterest,Path=Height}"/> <ListBox Name="ItemsOfInterest" ItemsSource="{Binding Path=ItemsOfInterest}" Margin="5" MinHeight="25" Width="250" HorizontalAlignment="Left"> The height of the ItemsOfInterest is dynamic

问题 I've an individualStore (extends from Em.ArrayController), whose task is to keep an array of individual objects. There are several APIs that my application calls, and they return individual objects which are sent to the store. Think about it as the database of cached individual records in my application. App.individualStore = App.ArrayController.create({ allIndividuals: function () { return this.get('content').sort(function (a, b) { return (b.votes_count - a.votes_count); }); }.property('

问题 I have two separate ItemsControl s that appear side by side. The ItemsControl s bind to the same ItemsSource , but they display the data differently. Each item displayed on the left will most likely be smaller than the same item on the right. This causes a problem because the rows will not line up, so I need the item on the left to bind to the item on the right. ItemsControl ItemsControl |Item 1 |Item 1 |Item 2 |Item 2 |Item 3 | |Item 4 |Item 3 As you can see, Item 2 on the right is larger,

问题 I have two separate ItemsControl s that appear side by side. The ItemsControl s bind to the same ItemsSource , but they display the data differently. Each item displayed on the left will most likely be smaller than the same item on the right. This causes a problem because the rows will not line up, so I need the item on the left to bind to the item on the right. ItemsControl ItemsControl |Item 1 |Item 1 |Item 2 |Item 2 |Item 3 | |Item 4 |Item 3 As you can see, Item 2 on the right is larger,

问题 I am creating an MVVM application. In my model I need handle to a System.Windows.Forms.Panel that is being displayed in the View . My idea is to create this Panel in the ViewModel and then from one side - bind the View to it , on the other side, pass its handle to the model . I've got an WindowsFormsHost control: <Page x:Class="Test.Views.RenderPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:WinForms="clr

问题 This is my model: class Person : INotifyPropertyChanged { public static int Counter; public string _firstName; public string _lastName; public event PropertyChangedEventHandler PropertyChanged; public string FirstName { get {return _firstname; } set { _fileName = value; NotifyPropertyChange("FirstName"); } } public AddPerson(Person person) { Counter++; } } I have this NotifyPropertyChange that changed all my Persons properties inside my ListView and i want to add the Counter field that hold

问题 Good evening! I try to use binding in kotlin, but data aren't update. All compile and work, but when user change text and click bsave -> i try to return data from textEdit, and data is not updated. TextEdit contains old data. In java it is working, but in kotlin i have problem. Can you help me? It is my method onCreate, here i create model and binding its. override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = DataBindingUtil.setContentView(this,R

问题 Someone suggested in another question that they, at some point, were able to bind a value to a field in WPF. I know that this is not a supported scenario (and personally I have only seen binding work with properties), but is it even technically possible? 回答1: No. Binding in WPF uses either a PropertyDescriptor or the Dependency Property mechanism, which only works on Properties. (Technical note here: A Dependency Property is technically sort of a field - it's defined as a field, then

问题 Someone suggested in another question that they, at some point, were able to bind a value to a field in WPF. I know that this is not a supported scenario (and personally I have only seen binding work with properties), but is it even technically possible? 回答1: No. Binding in WPF uses either a PropertyDescriptor or the Dependency Property mechanism, which only works on Properties. (Technical note here: A Dependency Property is technically sort of a field - it's defined as a field, then