获取 WPF 中 InkCanvas 内元素的 XY 坐标
我有一个 InkCanvas，它的子级是通过 C# 以编程方式添加的。它们不是通过 InkCanvas.LeftProperty 或 InkCanvas.TopProperty 设置的。我想知道是否有可能获得元素的默认 X 和 Y 值。目前，如果我检查 InkCanvas.LeftProperty 或 InkCanvas.TopProperty ，它将返回 NaN，因为它们未设置。这有可能吗？预先感谢您的任何帮助。
干杯，
尼禄
I have an InkCanvas which has it's children programmically added in through C#. They are not set with InkCanvas.LeftProperty or InkCanvas.TopProperty. I was wondering if it was at all possible to get these default X and Y values of the elements. Currently if I check the InkCanvas.LeftProperty or InkCanvas.TopProperty it would return NaN as they are not set. Is this possible at all? Thanks in advance for any help.
Cheers,
Nilu
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我认为这可能是答案：
Vector vector = VisualTreeHelper.GetOffset(element);它返回一个向量，其元素相对于父级的偏移量。可以在此处找到更多信息。
编辑：不认为这会帮助我做我想做的事。尽管如果您最初在元素上设置边距，那么这是一个很好的方法。就我而言，我认为我必须明确设置坐标。
I think this might be the answer:
Vector vector = VisualTreeHelper.GetOffset(element);It returns a vector with the element offset relative to the parent. More information can be found here.
Edit: Don't think this is going to help me for what I want to do. Although it's a good method if you are setting the margin on elements initially. In my case I think I would have to set the co-ordinates explicitly.
您想要使用 Canvas 上定义的各种静态方法来获取这些值 - GetLeft(), GetTop() 等。我认为
LeftProperty只是附加属性本身的定义，而不是获取值的方式。You want to use various static methods defined on
Canvasto get those values - GetLeft(), GetTop(), etc. I believe thatLeftPropertyis just the definition of the attached property itself, not the way to get the value.