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一旦我使用visualTreeHelper.getchild來查找子對象,我將如何獲取該對象的名稱,甚至是該對象的其他屬性(如寬度或高度)?在WPF中獲取子屬性使用VisualTreeHelper不返回值
即
這並不工作:
For i As Integer = 0 To VisualTreeHelper.GetChildrenCount(Can1) - 1
Dim ChildVisual As Visual = CType(VisualTreeHelper.GetChild(Can1, i), Visual)
Dim ChildName As DependencyProperty = childVisual.GetValue(Name)
它說類型的值「名稱」不能至少轉換爲system.windows.dependencyProperty
也不該作品(但它編譯):
For i As Integer = 0 To VisualTreeHelper.GetChildrenCount(Can1) - 1
Dim childVisual As Visual = CType(VisualTreeHelper.GetChild(Can1, i), Visual)
Dim GT1 As GeneralTransform = childVisual.TransformToAncestor(Can1)
Dim currentpoint As Point = GT1.Transform(New Point(0, 0))
x = currentpoint.X
y = currentpoint.Y
如果我把鼠標懸停在childvisual,我可以看看它的屬性,並看到該名稱已被設置爲我在畫布上的圖像名稱(Can1)。 但是,X和Y總是0.
確定這工作:(剛發現它) – SDanks
'昏暗childVisual視覺= CTYPE(VisualTreeHelper.GetChild(CAN1,I),視覺) 昏暗ChildName的String = ChildVisual.GetValue(Control.NameProperty) ' – SDanks