无法在表单上放置用户控件

Cannot Place User Control on Form(无法在表单上放置用户控件)

问题描述

我使用 VS2010 创建了一个 C# WinForms 应用程序.我是创建用户控件的新手，所以我创建了一个新的用户控件(作为同一项目的一部分).

I've created a C# WinForms application using VS2010. I'm new to creating user controls so I created a new user control (as part of the same project).

当我重建项目时，新控件出现在工具箱中.当我将控件从工具箱拖到窗体上时，出现以下错误.

When I rebuild the project, the new control appears in the toolbox. And when I drag the control from the toolbox onto a form, I get the following error.

未能加载工具箱项TagGroup".它将从工具箱中移除.

Failed to load toolbox item 'TagGroup'. It will be removed from the toolbox.

这也是我唯一一次创建用户控件时发生的.我在网上搜索过，但我发现的大多数答案似乎都与将控件放在单独的程序集中有关.(请注意，我发现很多问题与我遇到的相同问题.)

This happened the only other time I created a user control as well. I've searched the web but most answers I found seemed related to having the control in a separate assembly. (Note that I found plenty of questions with the same problem I'm having.)

谁能建议我接下来应该看哪里?

Can anyone suggest where I should look next?

推荐答案

我终于想通了.

我正在处理的项目使用两个类库程序集.尽管这些与我正在讨论的控件无关，但我查看并看到两个库在属性|构建选项卡中都将平台目标设置为任何 CPU".

The project I'm working with uses two class-library assemblies. Although these have nothing to do with the control I'm discussing, I looked and saw both libraries have Platform Target in the Properties|Build tab set to "Any CPU".

另一方面，我的应用程序将此设置设置为x64".通过将应用程序的设置更改为任何 CPU"，我现在可以将用户控件放置到我的表单上.

On the other hand, my application had this setting set to "x64". By changing my application's setting to "Any CPU", I can now place my user controls onto my forms.

去看看……

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