本文整理匯總了VB.NET中System.Windows.Media.ContainerVisual.VisualChildrenCount屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET ContainerVisual.VisualChildrenCount屬性的具體用法？VB.NET ContainerVisual.VisualChildrenCount怎麽用？VB.NET ContainerVisual.VisualChildrenCount使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Windows.Media.ContainerVisual的用法示例。
在下文中一共展示了ContainerVisual.VisualChildrenCount屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: MyContainerVisualHost
' Create a host visual derived from the FrameworkElement class.
' This class provides layout, event handling, and container support for
' the child visual objects.
Public Class MyContainerVisualHost
Inherits FrameworkElement
Private _containerVisual As ContainerVisual
Public Sub New(ByVal border As DrawingVisual, ByVal text As DrawingVisual)
' Create a ContainerVisual to hold DrawingVisual children.
_containerVisual = New ContainerVisual()
' Add children to ContainerVisual in reverse z-order (bottom to top).
_containerVisual.Children.Add(border)
_containerVisual.Children.Add(text)
' Create parent-child relationship with host visual and ContainerVisual.
Me.AddVisualChild(_containerVisual)
End Sub
' Provide a required override for the VisualChildrenCount property.
Protected Overrides ReadOnly Property VisualChildrenCount() As Integer
Get
Return If(_containerVisual Is Nothing, 0, 1)
End Get
End Property
' Provide a required override for the GetVisualChild method.
Protected Overrides Function GetVisualChild(ByVal index As Integer) As Visual
If _containerVisual Is Nothing Then
Throw New ArgumentOutOfRangeException()
End If
Return _containerVisual
End Function
End Class