C# 需要VB的等价物吗

这是我能够转换的VB.net：

private void MoveThumb( Thumb thumb, Point position )
{
    var element = AdornedElement as FrameworkElement;
    position = new Point( position.X * element.ActualWidth, position.Y * element.ActualHeight );
    **var halfSize = (Vector)thumb.DesiredSize / 2;**
    thumb.Arrange( new Rect( position - halfSize, position + halfSize ) );
}

它表示无法将window.size转换为window.vector

有人能帮我吗

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谢谢，这是正确的等价物吗

    Private Sub MoveThumb(ByVal thumb As Thumb, ByVal position As Point)
        Dim element = TryCast(AdornedElement, FrameworkElement)
        position = New Point(position.X * element.ActualWidth, position.Y * element.ActualHeight)
        Dim halfSize As Object = DirectCast(thumb.DesiredSize, Vector) / 2

        thumb.Arrange(New Rect(position - halfSize, position + halfSize))
    End Sub

删除半尺寸声明中的“作为对象”。因此，它应该是：

Dim halfSize As Vector = New Vector(thumb.DesiredSize.Height / 2, thumb.DesiredSize.Width / 2)

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你确定你知道向量类/结构的初始值设定项吗？您为Vector类/结构提供的初始值设定项可能错误。

dim halfSize = DirectCast(thumb.DesiredSize, Vector) / 2