关闭usercontrol的问题

本文介绍了关闭usercontrol的问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在WPF中创建一个应用程序，它包含Window和登录UserControl 添加了用户控件作为运行时MainWindow中的子项，现在当我单击usercontrol的登录按钮时，它会登录并加载一个新窗口。但我想关闭登录UserControl而不是父窗口。 i试过这段代码 Window parentWindow = Window.GetWindow（this）; parentWindow.Close（）; 但它会关闭父窗口而不是用户控件。 请帮助我!! 感谢问候， Sankar

解决方案

没有关闭控件这样的概念。 不仅不需要它，而且并不意味着什么。那是什么意思？您可以1）隐藏控件的实例; 2）永久地从窗口的逻辑树中删除它。 请参阅： msdn.microsoft/en-us/library/system.windows。 uielement.visibility％28v = vs.110％29.aspx [ ^ ]， msdn.microsoft/en-us/library/ms753391%28v=vs.110%29.aspx [ ^ ]。 如需删除，请参阅： msdn.microsoft/en-us/library/system.windows.controls.panel。儿童％28V = VS .110％29.aspx [ ^ ]， msdn.microsoft/en-us/library/system.windows.controls.uielementcollection%28v=vs.110%29 .aspx [ ^ ]， msdn.microsoft/en-us/library/ms590022(v = vs.110）.aspx [ ^ ]， msdn.microsoft/en-us /库/系统.windows.controls.uielementcollection.removeat（v = vs.110）.aspx [ ^ ]。

-SA

hi, I am making an application in WPF, which consists of Window and a login UserControl That user control is added as a child in MainWindow at runtime, now when i click login button of usercontrol it gets logged in and loads a new window. But i want to close the login UserControl alone not the parent window. i have tried this code Window parentWindow = Window.GetWindow(this); parentWindow.Close(); but it closes the parent window not the user control. Please help me in this!! Thanks Regards, Sankar

解决方案

There is no such concept as "close a control". Not only it is never needed, but it does not mean anything certain. What is that supposed to mean? You can possibly 1) hide an instance of the control; 2) remove it permanently from the the logical tree of the window. Please see: msdn.microsoft/en-us/library/system.windows.uielement.visibility%28v=vs.110%29.aspx[^], msdn.microsoft/en-us/library/ms753391%28v=vs.110%29.aspx[^]. For removing, see, for example: msdn.microsoft/en-us/library/system.windows.controls.panel.children%28v=vs.110%29.aspx[^], msdn.microsoft/en-us/library/system.windows.controls.uielementcollection%28v=vs.110%29.aspx[^], msdn.microsoft/en-us/library/ms590022(v=vs.110).aspx[^], msdn.microsoft/en-us/library/system.windows.controls.uielementcollection.removeat(v=vs.110).aspx[^].

—SA