blocks|key|100979|text|试一试|type|unstyled|depth|inlineStyleRanges|entityRanges|data|100980|frmPurchaseInvoiceSelect.StartPosition+=+FromStartPosition.CenterParent|offset|length|style|CODE|100981|始终从Mdi父级的中心开始。|100982|有几个选项，但这取决于您希望窗体从哪里开始。我还没有试过，但是：|100983|frmPurchaseInvoiceSelect.Location+=+windowPoint
frmPurchaseInvoiceSelect.Size+=+windowSize
frmPurchaseInvoiceSelect.StartPosition+=+FormStartPosition.Manual++|code-block|syntax|javascript|100984|应该准确地从您想要的位置开始窗体。|100985|entityMap^0|0|0|1Z|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|Z|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|10|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Try 

<code>frmPurchaseInvoiceSelect.StartPosition = FromStartPosition.CenterParent</code> 

to always start in the centre of the Mdi parent.

There are a few options but it depends on where you would like the form to start. I haven't tried it but:

<pre><code>frmPurchaseInvoiceSelect.Location = windowPoint
frmPurchaseInvoiceSelect.Size = windowSize
frmPurchaseInvoiceSelect.StartPosition = FormStartPosition.Manual 
</code></pre>

should start the form exactly where you want.

blocks|key|101046|text|下面为我解决了这个问题frmUser.StartPosition+=+FormStartPosition.Manual当重新打开时，它停止了‘爬行’|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|101047|entityMap^0|B|1C|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The following resolved it for me
frmUser.StartPosition = FormStartPosition.Manual
when reopened, it stopped 'creeping'

blocks|key|2555579|text|请看我的question和结果答案，这可能会对你解决这个问题有很好的帮助。您还可以查看我关于这个主题的非常冗长的blog条目。我的代码是用Delphi编写的，但您应该能够将概念转移到VB中。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2555580|entityMap|0|LINK|mutability|MUTABLE|url|http://nbnewman.blogspot.com/2011/12/preventing-mdi-creep-how-to-decascade.html|1^0|4|8|0|1K|4|1|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@$A|N|B|O|1|P]|$A|Q|B|R|1|S]]|C|$]]|$1|D|3|-4|5|6|7|T|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|K]]]]

See my <a href="http://nbnewman.blogspot.com/2011/12/preventing-mdi-creep-how-to-decascade.html" rel="nofollow">question</a> and the resulting answer which might well help you with this problem. You can also look at my very verbose <a href="http://nbnewman.blogspot.com/2011/12/preventing-mdi-creep-how-to-decascade.html" rel="nofollow">blog</a> entry on the subject. My code is written in Delphi but you should be able to transfer the concepts to VB.

blocks|key|651663|text|不管使用哪种语言，原因都是一样的。当您打开第一个MDI窗口时，起点相对于MDI框架是0,0，因此它在框架内打开左上角。如果您关闭窗口然后重新打开它，起始点不再是0,0，而是基于您打开窗口的方式(层叠等)的某个其他值，通常它将略低于前一个关闭的窗口的右侧。问题之所以存在，是因为您或该工具没有检查即将打开的窗口是否是框架内的唯一窗口实例。如果该窗口是唯一的实例，请在0,0处打开它，否则在相对于其他窗口的适当位置打开它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|651664|此功能通常由您正在使用的MDI库处理，如果不是，则需要手动编写代码。它只需要几行代码就可以手动编写代码，所以它的实现应该很简单。|651665|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Regardless of the language used, the cause is the same. When you open the first MDI window, the starting point is 0,0 relative to the MDI frame so it opens top left within the frame. If you close the window and then reopen it, the starting point is no longer 0,0 but some other value based on how you open windows (cascade, etc) Generally it will be slightly lower and to the right of the previous window which was closed. The problem exists because you or the tool are not checking to see if the window about to be opened is the only window instance within the frame. If the window is the only instance, open it at 0,0, otherwise open it at the appropriate position relative to the other windows.

This functionality would be usually handled by the MDI library you are using, or if not, you would code it manually. It only takes a few lines to code it manually so it should be trivial to implement.

blocks|key|101008|text|MBoy，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|101009|MDI应用程序通常不会以窗口为中心显示，尽管SDI应用程序可能会。在打开多个窗口的MDI应用程序中，用户通常希望看到每个窗口(层叠视图)的边缘，以便他/她可以单击所需的窗口将其显示在前面。这通常可以通过两种方式来完成。了解有多少窗口处于打开状态，以及它们相对于MDI框架的位置。在最后一个窗口的正下方和右侧打开后续窗口。此功能通常在所使用的语言或库中提供。第二种方法是选择(菜单或其他方式)，以便在事件发生后以所需的方向(层叠、平铺或分层)显示打开的窗口。正如我之前提到的，如果语言/库中没有自动提供MDI显示功能，则需要手动编写代码。这可以在一个函数中完成，该函数在每个MDI窗口打开但变得可见之前调用。|101010|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

MBoy,

MDI applications do not usually display windows centered although SDI applications may.
In an MDI application with multiple windows open, a user generally wants to see the edge of each window (cascaded view) so that he/she can click on the desired window to bring it to the front. This can normally be done 2 ways. Know how many windows are open and their positions relative to the MDI frame. Open subsequent windows just below and to the right of the last window. This functionality is usually provided within the language or library used. The second way is to have a selection (menu or otherwise) to display the opened windows after the fact in the desired orientation (cascaded, tiled, or layered). As I mentioned before, if MDI display functionality is not provided automatically within the language/library, it will need to be coded manually. This can be done in a function which is called when each MDI window is opened but before it becomes visible.

I have a VB.NET MDI WinForms app. My users have been complaining about form creep (as they call it), this is where each time you open a specific form within the main MDI window it opens slightly below and to the right of the location it loaded previously - i.e. it starts in the top left of the window and works its way down to the bottom right.

I have to agree with them that this is extremely irritating, is there any way to prevent this? The code to load the forms is:

<pre><code>frmPurchaseInvoiceSelect.Show()
frmPurchaseInvoiceSelect.MdiParent = Me
</code></pre>

I can address this somewhat by setting the forms start-up positions to 'Manual' but then they just open directly on top of each other in the top left of the screen.

Any other SO users come across this?

MDI form 'creep' (position change in MDI window)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云AI代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

文章&问答评论现已支持表情

全新交互，全新视觉，新增快捷键、悬浮工具栏、高亮块等功能并同时优化现有功能，全面提升创作效率和体验

社区富文本编辑器全新改版！诚邀体验～ 

精选全网热门MCP server，让你的AI更好用 🚀

💥开发者 MCP广场重磅上线！

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

我有一个VB.NET MDI WinForms应用程序。我的用户一直在抱怨表单爬行(他们称之为表单爬行)，这就是每次你在MDI主窗口中打开一个特定的表单时，它会在之前加载位置的略下方和右侧打开--即它从窗口的左上角开始，然后向下一直到右下角。我不得不同意他们的观点，这非常令人恼火，有什么方法可以防止这种情况发生吗？加载表单的代码为：frmPurchaseInvoiceSelect.Show()fr

问MDI表单‘爬行’( MDI窗口中的位置更改)
EN

回答 5

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问MDI表单‘爬行’( MDI窗口中的位置更改)EN

回答 5

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问MDI表单‘爬行’( MDI窗口中的位置更改)
EN