wpf 如何获取子元素相对于父元素的位置？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/1923697/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How can I get the position of a child element relative to a parent?
提问by tom greene
If a have a Canvas parent, it is very easy to get the position of a child:
如果a有Canvas父级，很容易得到子级的位置：
Canvas.GetLeft/Top (child)
But how can I get the position of a child for other types of parents?
但是我怎样才能为其他类型的父母获得孩子的位置？
回答by Elisha
It can be done using TranslatePointmethod of the control.
它可以使用TranslatePoint控件的方法来完成。
UIElement container = VisualTreeHelper.GetParent(control) as UIElement;
Point relativeLocation = control.TranslatePoint(new Point(0, 0), container);
new Point(0, 0)represents the top left point of the control and TranslatePointwill return the location of that point relative to the parent control (I assumed here the parent is a UIElement).
You can place instead of containerany ancestor of the control.
new Point(0, 0)表示控件的左上角，TranslatePoint并将返回该点相对于父控件的位置（我在这里假设父控件是 a UIElement）。
您可以放置控件的任何祖先而不是容器。
