我有以下代码来测试通用 Windows 10 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>
代码背后：
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
我正在并排测试两种绑定类型......标准 {Binding...} 类型工作正常，但新的 x:Bind 工作并不奇怪......
也许我误解了新绑定的工作原理？但我明白，x:Bind 绑定到 CodeBehind，只需要一个要绑定的公共属性，然后您就可以开始运行了。
我正在使用 VS2015 RC 和 Win 10 build 10130。