binding

问题 I want to bind a list of enum values to a 'DataGridComboBoxColumn'. I've tried a lot, but nothing really works. Here is what I have: viewmodel-class: public class ViewModel { public ViewModel() { TestCollection= new ObservableCollection<MyEnum>(); AnyClasses = new ObservableCollection<AnyClass>(); //... fill AnyClasses with stuff... TestCollection.Add(MyEnum.Value1); TestCollection.Add(MyEnum.Value2); TestCollection.Add(MyEnum.Value3); TestCollection.Add(MyEnum.Value4); TestCollection.Add

问题 I have a ComboBox with a custom ItemsTemplateSelector. The Items for the control are defined in xaml, like so: <ComboBox ItemTemplateSelector="{StaticResource CommonListSelectorTemplates}" > <local:MyItem Heading="First" Text="First Item"/> <local:MyItem Heading="Second" Text="Second Item"/> <local:MyItemWithValue Heading="Third" Text="Third Item" Value="{Binding TheValue}" /> </ComboBox> The third item has a Value property that I wish to bind to the TheValue property on the ComboBox's

问题 I have the following ItemsControl page... <Page x:Class="Kiosk.View.ItemListView" 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" xmlns:Converter="clr-namespace:Kiosk.Converter" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300" Margin="10" Title="ItemListView"> <StackPanel> <Button

问题 Im trying to estimate the mean and standard deviation of an infinite stream of numbers. When I run my code I get an error message "cannot change value of locked binding" I did some research and gather this error is related to my use of global variables but I am unable to figure it out. Any help would be much appreciated. Thanks in advance for your help #define global variables glength <<- 0 sum <<- 0 sumSq <<- 0 xBar <<- 0 SD <<- 0 #function with global variables gF <- function() { glength <<

问题 I have a list of buttons: <Button Style="{DynamicResource DestinationButtonStyle}"> <TextBlock Text="{Binding FullName}" Style="{DynamicResource DestinationStationTextBlockStyle}" TextTrimming="CharacterEllipsis" /> </Button> I want buttons to have names equal to text of content. Is it possible to make this kind of binding? 回答1: Quote from the MSDN: Data binding a Name is technically possible, but is an extremely uncommon scenario because a data-bound Name cannot serve the main intended

问题 I have the following DataTemplate in resources that I would like to reuse throughout a GridView. <Window.Resources> <DataTemplate x:Key="NumericalDataTemplate" DataType="GridViewColumn.CellTemplate"> <StackPanel Orientation="Horizontal" Height="32"> <TextBlock Text="{Binding MyLength}" VerticalAlignment="Center" HorizontalAlignment="Center"> <TextBlock.Style> <Style TargetType="{x:Type TextBlock}" > <Setter Property="Visibility" Value="Visible" /> <Style.Triggers> <DataTrigger Binding="

问题 This question already has answers here : When should I use Arrow functions in ECMAScript 6? (9 answers) Can you bind 'this' in an arrow function? (8 answers) Are 'Arrow Functions' and 'Functions' equivalent / exchangeable? (1 answer) Closed 2 years ago . I'm being a bit puzzled when I try to convert a simple ES5 code to ES6. Let's say I have this block of code: var obj = {num: 2} var addToThis = function (a, b, c) { return this.num + a + b + c } // call console.log(addToThis.call(obj, 1, 2, 3

问题 Im having some problems with binding in wpf/xaml. Have this simple file: <Window x:Class="test.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Grid> <TextBlock Height="21" Foreground="Black" Margin="74,98,84,0" Name="textBlock1" VerticalAlignment="Top" Text="{Binding MyText}" /> </Grid> </Window> Where i want to bind the content of the textblock to my property "MyText".

问题 I want my Zsh to be Dvorak friendly in Screen. I am trying to make the following bindings in Zsh such that I can use them in Ctl-a Esc mode in moving h => d j => l k => t l => n I have not yet found any ways to do that. How can you make the following keybindings in Screen , such that I can use them in the mode C-A Esc? 回答1: Screen has a markkeys configuration option that lets you remap the keys used in scrollback mode. The following code makes Screen Dvorak friendly in .screenrc markkeys h=d

问题 I want to set a binding. The problem is that the target is of type string but the source is of type double. In the following code VersionNumber is of type double. When I run this, the textblock is empty, without throwing any exceptions. How can I set this binding? <Style TargetType="{x:Type MyControl}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type MyControl}"> <TextBlock Text="{TemplateBinding Property=VersionNumber}" /> </ControlTemplate> </Setter.Value> <