Windows 10 个通用应用程序已编译绑定/x:bind 不工作

Question

我有以下代码来测试通用 Windows 10 个应用程序中的新编译绑定。

XAML:

<Page
x:Class="xBindTest.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:xBindTest"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
DataContext="{Binding RelativeSource={RelativeSource Self}}">

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">

        <TextBlock x:Name="Tester" Text="{x:Bind myBindClass.TestText, Mode=OneWay}" ></TextBlock>
        <TextBlock x:Name="Tester2" Text="{Binding myBindClass.TestText, Mode=OneWay}" ></TextBlock>
        <Button x:Name="button" Content="Button" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>

    </StackPanel>            

</Grid>

隐藏代码：

Public Class xBindClass : Implements INotifyPropertyChanged

    Private _TestText As String

    Public Property TestText As String
        Get
            Return _TestText
        End Get
        Set(value As String)

            If _TestText <> value Then

                _TestText = value
                NotifyPropertyChanged("TestText")

            End If
        End Set
    End Property

    Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged

    Private Sub NotifyPropertyChanged(<CallerMemberName> Optional propertyName As String = "")
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub

End Class

''' <summary>
''' An empty page that can be used on its own or navigated to within a Frame.
''' </summary>
Public NotInheritable Class MainPage
    Inherits Page


    Public Property myBindClass As xBindClass

    Public Sub New()

        ' Add any initialization after the InitializeComponent() call.

        myBindClass = New xBindClass With {.TestText = "Hello"}

        ' This call is required by the designer.
        InitializeComponent()

    End Sub

    Private Sub button_Click(sender As Object, e As RoutedEventArgs) Handles button.Click
        myBindClass.TestText &= " There"

        Tester.DataContext = myBindClass.TestText

    End Sub
End Class

我正在并排测试这两种绑定类型...标准 {Binding...} 类型工作正常，但新的 x:Bind 工作不正常...

也许我误解了新绑定的工作原理？但我明白，x:Bind 绑定到 CodeBehind，所需要的只是绑定到 public 属性，然后你就关闭了运行.

我正在使用 VS2015 RC 和 Win 10 build 10130。

Answer 1

原来 x:bind 没有在 vb.net 中实现，因为 VS2015RC.MS 已经确认这将在完整的 RTM

中实现

Windows 10 个通用应用程序已编译绑定/x:bind 不工作

Windows 10 Universal App compiled Bindings / x:bind not working

vb.net

xaml

win-universal-app

compiled-bindings