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嗯,我叫對話框苗條下來的問題 這裏自定義控制我的vb.net代碼:WPF CustomControl命令和數據綁定
Public Class Dialog
Inherits System.Windows.Controls.Control
#Region "DependencyProperties"
Public Shared ReadOnly OkCommandProperty As DependencyProperty = _
DependencyProperty.Register("OkCommand", _
GetType(ICommand), GetType(Dialog), _
New FrameworkPropertyMetadata(Nothing))
Private Shared ReadOnly YesCommandPropertyKey As DependencyPropertyKey = _
DependencyProperty.RegisterReadOnly("YesCommand", _
GetType(ICommand), GetType(Dialog), _
New FrameworkPropertyMetadata(Nothing))
Public Shared ReadOnly YesCommandProperty As DependencyProperty = _
YesCommandPropertyKey.DependencyProperty
#End Region
Public ReadOnly Property YesCommand() As ICommand
Get
Return CType(GetValue(ConfirmationDialog.YesCommandProperty), ICommand)
End Get
End Property
Public Sub New()
MyBase.New()
SetValue(ConfirmationDialog.YesCommandPropertyKey, New RelayCommand(AddressOf Yes))
End Sub
#Region "Commands"
Public Property OkCommand() As ICommand
Get
Return CType(GetValue(OkCommandProperty), ICommand)
End Get
Set(ByVal value As ICommand)
SetValue(OkCommandProperty, value)
End Set
End Property
#End Region
#Region "Functions"
Sub Ok()
Dim command As ICommand = OkCommand
If (command Is Nothing AndAlso command.CanExecute(Nothing)) Then
command.Execute(Nothing)
End If
End Sub
Sub Yes(ByVal parameter As Object)
Ok()
Me.Visibility = Windows.Visibility.Collapsed
End Sub
#End Region
Shared Sub New()
'This OverrideMetadata call tells the system that this element wants to provide a style that is different than its base class.
'This style is defined in themes\generic.xaml
DefaultStyleKeyProperty.OverrideMetadata(GetType(Dialog), New FrameworkPropertyMetadata(GetType(Dialog)))
End Sub
End Class
,這裏是我的XAML:
<Style TargetType="{x:Type local:Dialog}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:Dialog}">
<Button Content="Yes" Command="{Binding YesCommand}"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
但YesCommand似乎並沒有工作,但如果我把OkCommand它的作品,爲什麼我不能綁定到一個命令定義和設置codebehind(或控制代碼)?
這似乎並沒有解決問題:(,似乎無法找到的命令,我想念使用只讀DP – Peter 2010-02-15 11:29:49
看在調試輸出窗口綁定?錯誤 – 2010-02-15 12:08:02
似乎它尋找父容器上的命令在我的情況窗口...有沒有辦法告訴它自我看?System.Windows.Data錯誤:39:BindingExpression路徑錯誤:'YesCommand' property'not'on'object'''Window1'(Name ='')'。BindingExpression:Path = YesCommand; DataItem ='Window1'(Name ='');目標元素是'Button'(Name ='');目標屬性是'命令'(類型'ICommand') – Peter 2010-02-15 12:16:07