本文整理汇总了VB.NET中System.Windows.Media.ContainerVisual.VisualChildrenCount属性的典型用法代码示例。如果您正苦于以下问题：VB.NET ContainerVisual.VisualChildrenCount属性的具体用法？VB.NET ContainerVisual.VisualChildrenCount怎么用？VB.NET ContainerVisual.VisualChildrenCount使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Windows.Media.ContainerVisual的用法示例。
在下文中一共展示了ContainerVisual.VisualChildrenCount属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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