如何在wpf touch应用程序中阻止对象移过窗口边界? [英] How to stop objects from moving past the window boundary in wpf touch application?

问题描述

我创建了一个基于触摸的wpf应用程序，其中在交互时弹出按钮和列表框.通过操作，可以在屏幕上移动对象.我使用了ManipulationStarting，ManipulationDelta和ManipulationInertia事件来执行它们. 如何阻止对象移过屏幕?按钮和列表框位于(画布和堆栈面板)>网格>窗口中.

I have created a touch based wpf application wherein buttons and listbox popup on interaction. On manipulation the objects can be moved across the screen. I have used ManipulationStarting, ManipulationDelta and ManipulationInertia events to execute them. How do I stop the objects from moving past the screen? The button and listbox are placed inside a (Canvas and stackpanel)>Grid>Window. 

推荐答案

SrMusashi，

Hi SrMusas

>>如何阻止对象移过屏幕?

您可以通过将元素的边界与父边界的边界进行检查，尝试使该元素在到达窗口边界时停止.

You can try to make the element stop when it hits a window boundary by checking its bounds against the bounds of its parent.

您可以参考以下详细文章.

You can refer the following detailed articles.

在触摸操作期间在窗口内保留元素:
https://wpf.2000things.com /2013/01/29/744，在触摸操作期间在窗口内保留一个元素/

Keeping an Element within Window During Touch Manipulation:
https://wpf.2000things.com/2013/01/29/744-keeping-an-element-within-window-during-touch-manipulation/

使用触摸操作事件来翻译元素:
https://wpf.2000things.com /2013/01/24/741-使用touch-manipulation-events来翻译元素/

Using Touch Manipulation Events to Translate an Element:
https://wpf.2000things.com/2013/01/24/741-using-touch-manipulation-events-to-translate-an-element/

以下链接供您参考.

我正在使用WM_POINTER在我们的项目中应用触摸.如果轻拂一个对象(快速移动)，我想将我的对象停在窗口边界处?

I am using WM_POINTER to apply touch in our project .In the case of flick a object(fast move) ,i want to stop my object at the window boundary??
https://social.msdn.microsoft.com/Forums/vstudio/en-US/ea9e0744-d09f-4f54-a731-2ef4962af530/i-am-using-wmpointer-to-apply-touch-in-our-project-in-the-case-of-flick-a-objectfast-move-i?forum=vcgeneral

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最好的问候，

Yohann Lu

Yohann Lu

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