剪切mdi表单的代码 [英] Cut code for mdi form

问题描述

嗨
我正在制作一个窗口基础应用程序，它包含一个mdi表单和许多子表单，因为我使用了一个ToolStripMenuItem，其中包含一个按钮剪切&重新按下那个按钮te选择的文本框包含任何数据应该被剪切所以请帮助他从这些我用过的代码

  Dim  activeChild  As  Form =  Me  .ActiveMdiChild 
 如果（不 activeChild    Nothing ）然后 
 尝试 
  Dim  tb  As  TextBox =  CType (activeChild.ActiveControl，TextBox）
 如果 TextBox.CanRedo =  True  然后 
 如果 TextBox.RedoAct ionName<>  删除 然后 
 TextBox.Redo（）
 结束 如果 
 结束 如果 
  Catch  
 MessageBox.Show（  您需要选择一个TextBox。）
 结束 尝试 
 结束 如果 

重做工作

解决方案

< blockquote>这是一个想法：谁需要MDI？为什么要折磨自己并吓跑你的用户？

帮自己一个大忙：根本不要使用MDI。没有它，您可以更轻松地实现设计，质量更好。 MDI甚至被微软高度劝阻，事实上，微软将其从WPF中删除并且很难支持它。更重要的是，如果您使用MDI，您将吓跑所有用户。只是不要。请参阅：

http://en.wikipedia.org/wiki/Multiple_document_interface#Disadvantages [ ^ ]，

如何在WPF中创建MDI父窗口？ [ ^ ]。



我可以解释做什么。请看我过去的答案：

如何在WPF中创建MDI父窗口？ [解决方案2 ]，

关于在WPF中使用MDI窗口的问题 [ ^ ]，

麦当劳给出错误 [ ^ ]，

如何设置子窗体最大化，最后一个子窗体最小化 [ ^ ]。

-SA

Hi I am making an window base application on which it contain an mdi form and many child form in that i had used a ToolStripMenuItem which contain a button cut & redo on press of that button te selected textbox contain any data should be cut so pls help he out of these i had used code

Dim activeChild As Form = Me.ActiveMdiChild
        If (Not activeChild Is Nothing) Then
            Try
                Dim tb As TextBox = CType(activeChild.ActiveControl, TextBox)
                If TextBox.CanRedo = True Then
                    If TextBox.RedoActionName <> "Delete" Then
                        TextBox.Redo()
                    End If
                End If
            Catch
                MessageBox.Show("You need to select a TextBox.")
            End Try
        End If

for redo which is nt working

解决方案

Here is the idea: who needs MDI, ever? Why torturing yourself and scaring off your users?
Do yourself a great favor: do not use MDI at all. You can do much easier to implement design without it, with much better quality. MDI is highly discouraged even by Microsoft, in fact, Microsoft dropped it out of WPF and will hardly support it. More importantly, you will scare off all your users if you use MDI. Just don''t. Please see:
http://en.wikipedia.org/wiki/Multiple_document_interface#Disadvantages[^],
How to Create MDI Parent Window in WPF?[^].

I can explain what to do instead. Please see my past answers:
How to Create MDI Parent Window in WPF? [Solution 2],
Question on using MDI windows in WPF[^],
MDIContainer giving error[^],
How to set child forms maximized, last childform minimized[^].

—SA

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