WPF ComboBox弹出窗口:底部并对齐到右边缘 [英] WPF ComboBox popup placement : Bottom and aligned to the right edge
问题描述
我尝试使用非标准下拉列表来创建一个 ComboBox
。基本上,我希望下拉列表低于 ComboBox
,但与 ComboBox
的右边缘对齐,而不是左边缘。
I'm trying to create a ComboBox
with a non-standard dropdown alignment. Basically, I want the dropdown to be below the ComboBox
, but aligned with the right edge of the ComboBox
instead of the left edge.
正常的 ComboBox
看起来像使用 PlacementMode =Bottom
:
我想要的:
< img src =https://i.stack.imgur.com/TnzxI.pngalt =组合框向右对齐>
我试图在我的 ComboBox
的模板中玩 Popup.PlacementMode
属性,但没有可能的值似乎做我想要的有没有一个简单的方法来做,最好是在纯XAML中?
I tried to play with the Popup.PlacementMode
property in the template of my ComboBox
, but none of the possible values seem to do what I want. Is there a simple way to do it, preferably in pure XAML?
推荐答案
当我打开Expression Blend时,我想出了解决方案在几秒钟内:
When I opened Expression Blend, I have come up with the solution within a few seconds:
<Popup Placement="Left" VerticalOffset="{TemplateBinding ActualHeight}"
HorizontalOffset="{TemplateBinding ActualWidth}"
有时这个应用程序比用手写xaml更有用,但不是那么频繁。
Sometimes this application is more useful than writing xaml by hands, but not so often.
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