data-binding

问题 I have a problem binding data to a WPF DataGrid using Python.NET The code is shown below, and I've tried three different approaches to binding data - each fails and the error message is included as a comment in the code below If I do not attempt to add data, the datagarid displays correctly with headers. But I'm unable to populate the grid with any data. Any help will be gratefully received!!! Doug import clr #.NET references import System import System.Windows.Controls as WPFControls import

问题 I have a problem binding data to a WPF DataGrid using Python.NET The code is shown below, and I've tried three different approaches to binding data - each fails and the error message is included as a comment in the code below If I do not attempt to add data, the datagarid displays correctly with headers. But I'm unable to populate the grid with any data. Any help will be gratefully received!!! Doug import clr #.NET references import System import System.Windows.Controls as WPFControls import

问题 I have a problem binding data to a WPF DataGrid using Python.NET The code is shown below, and I've tried three different approaches to binding data - each fails and the error message is included as a comment in the code below If I do not attempt to add data, the datagarid displays correctly with headers. But I'm unable to populate the grid with any data. Any help will be gratefully received!!! Doug import clr #.NET references import System import System.Windows.Controls as WPFControls import

问题 I have class public class Car { [Description("name of the car")] public string Name { get; set; } [Description("age of the car")] public int Age { get; set; } } is there any possibility to bind Description attribute to Label content. The solution what I'm looking for shouldn't require to instantiate Class object. 回答1: It won't be a proper binding (which is not necessary for static data anyway) but you can easily create a MarkupExtension to retrieve it, just pass the type and the property name

问题 I have class public class Car { [Description("name of the car")] public string Name { get; set; } [Description("age of the car")] public int Age { get; set; } } is there any possibility to bind Description attribute to Label content. The solution what I'm looking for shouldn't require to instantiate Class object. 回答1: It won't be a proper binding (which is not necessary for static data anyway) but you can easily create a MarkupExtension to retrieve it, just pass the type and the property name

问题 I have class public class Car { [Description("name of the car")] public string Name { get; set; } [Description("age of the car")] public int Age { get; set; } } is there any possibility to bind Description attribute to Label content. The solution what I'm looking for shouldn't require to instantiate Class object. 回答1: It won't be a proper binding (which is not necessary for static data anyway) but you can easily create a MarkupExtension to retrieve it, just pass the type and the property name

问题 I want to bind CLR property into datagrid Row How to Bind row binding in datagrid(Twoway Mode) CodeBehind: public partial class TechnicalPropertiesU_Var : Window { public TechnicalPropertiesU_Var() { InitializeComponent(); List<Myclass> myclassList = new List<Myclass>(); myclassList.Add(new Myclass() { IA = 0, IB = 0, IC = 0, ID = 0, IE = 0, IF = 0, IF = 0 }); MyGrid.ItemsSource = myclassList; } } MyWindow Xaml: <Grid> <DataGrid x:Name="MyGrid" AutoGenerateColumns="False"> <DataGrid.Columns>

问题 I want to bind CLR property into datagrid Row How to Bind row binding in datagrid(Twoway Mode) CodeBehind: public partial class TechnicalPropertiesU_Var : Window { public TechnicalPropertiesU_Var() { InitializeComponent(); List<Myclass> myclassList = new List<Myclass>(); myclassList.Add(new Myclass() { IA = 0, IB = 0, IC = 0, ID = 0, IE = 0, IF = 0, IF = 0 }); MyGrid.ItemsSource = myclassList; } } MyWindow Xaml: <Grid> <DataGrid x:Name="MyGrid" AutoGenerateColumns="False"> <DataGrid.Columns>

问题 The generated binding class from the Android Data Binding library has different versions of the inflate method: One that looks like the usual LayoutInflater.inflate method that takes a viewGroup and attachToRoot parameter, and one that only takes a LayoutInflater and nothing else. The documentation doesn't explain the difference between the two and unfortunately Android Studio doesn't let me step through the source code of inflate so that I could figure out which values it is using internally

问题 I have a WPF project with a view model and some nested UI elements. Here is the (relevant section of) XAML: <UserControl> // DataContext is MyVM (set programmatically) <TreeView ItemsSource="{Binding Trees}"> <TreeView.ItemTemplate> <HierarchicalDataTemplate ItemsSource="{Binding Subtrees}"> <StackPanel> <ListView ItemsSource="{Binding Contents}" SelectedValue="{Binding SelectedContent}" // won't work: Tree has no such property SelectionMode="Single"/> </StackPanel> </HierarchicalDataTemplate