本文整理汇总了VB.NET中System.Windows.Media.Visual.RemoveVisualChild方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Visual.RemoveVisualChild方法的具体用法?VB.NET Visual.RemoveVisualChild怎么用?VB.NET Visual.RemoveVisualChild使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了Visual.RemoveVisualChild方法的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,您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。
示例1: MyVisualHost
' Create a host visual derived from the FrameworkElement class.
' This class provides layout, event handling, and container support for
' the child visual object.
Public Class MyVisualHost
Inherits FrameworkElement
Private _child As DrawingVisual
Public Sub New(ByVal drawingVisual As DrawingVisual)
_child = drawingVisual
Me.AddVisualChild(_child)
End Sub
Public Property Child() As DrawingVisual
Get
Return _child
End Get
Set(ByVal value As DrawingVisual)
If _child IsNot value Then
Me.RemoveVisualChild(_child)
_child = value
Me.AddVisualChild(_child)
End If
End Set
End Property
' Provide a required override for the VisualChildrenCount property.
Protected Overrides ReadOnly Property VisualChildrenCount() As Integer
Get
Return If(_child 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 _child Is Nothing Then
Throw New ArgumentOutOfRangeException()
End If
Return _child
End Function
开发者ID:VB.NET开发者,项目名称:System.Windows.Media,代码行数:41,代码来源:Visual.RemoveVisualChild
注:本文中的System.Windows.Media.Visual.RemoveVisualChild方法示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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