重叠的滚动查看器中的Elements的工具提示 [英] Elements' tooltips inside overlapping scrollviewers

问题描述

大家好，

我有两个重叠的scrollviewer，并且需要为两个scrollviewer中的每个可见元素显示一个工具提示.问题在于只有最上方的scrollviewer元素才显示工具提示.我已经用Google搜索过，并且已经阅读了一些页面，例如在可视层中进行命中测试没有运气.

这里是一个仅显示第二个工具提示(绿色矩形)的代码示例:

 <  网格   高度  ="    宽度  ="  > 
  <   ScrollViewer  > 
    <  矩形    ="  红色" 宽度  > 100"     Horizo​​ntalAlignment   =" 左侧"    工具提示  红色" / > 
  <  /ScrollViewer  > 
  <   ScrollViewer  > 
    <  矩形    ="  绿色" 宽度  > 100"     Horizo​​ntalAlignment   =" 右" 工具提示  绿色" / > 
  <  /ScrollViewer  > 
<  /Grid  >  

有什么主意吗?

谢谢，

Raúl

解决方案

就目前而言，您不能这样做.当项目重叠时，获得工具提示支持的元素是z顺序顶部的元素.基本上，这里的问题是红色滚动查看器被蓝色滚动查看器覆盖，因此，即使将鼠标悬停在红色矩形上，也会有z顺序较高的项妨碍您的操作，并阻止工具提示服务与红色矩形.

我对您要在此处实现的目标感到困惑-通过重叠的滚动查看器，您将第二个滚动条显示在第一个滚动条的顶部，因此无论如何您只能滚动第二个滚动条.

Hi all,

I have two overlapping scrollviewers and I need to show a tooltip for each visible element inside both scrollviewers. The problem is that only topmost scrollviewer''s elements show the tooltip. I have googled and I have read some pages like Hit Testing in the Visual Layer without luck.

Here a code example where only the second tooltip is shown (green rectangle):

<Grid Height="100" Width="300">
  <ScrollViewer>
    <Rectangle Fill="Red" Width="100" HorizontalAlignment="Left" ToolTip="Red" />
  </ScrollViewer>
  <ScrollViewer>
    <Rectangle Fill="Green" Width="100" HorizontalAlignment="Right" ToolTip="Green" />
  </ScrollViewer>
</Grid>

Any idea?

Thanks,

Raúl

解决方案

As it stands, you can''t. The element that gets the tooltip support when the items overlap is the element at the top of the z-order. Basically, the problem here is that the red scrollviewer is overlaid by the blue scrollviewer, so even though you hover over the red rectangle, there is an item with a higher z-order getting in the way and preventing the tooltip service from interacting with the red rectangle.

I am confused as to what you are trying to achieve here - by having overlapping scroll viewers, you show the second scrollbar on top of the first, so you could only scroll the second item anyway.

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