winforms - Visual Studio 2010 设计器运行时出错

Question

我正在使用 VS2010，如果我在设计器模式下打开一个表单并运行我的应用程序，设计器选项卡将不再显示表单设计器，而是会显示错误(并且只能通过重新启动 IDE 来修复)说:

"To prevent possible data loss before loading the designer, the following errors must be resolved:"

1 Error:

"The designer could not be shown for this file because none of the classes within it can be designed. The designer inspected the following classes in the file: ##### --- The base class ##### could not be loaded. Ensure the assembly has been referenced and that all projects have been built"

然后我显示以下调用堆栈:

at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.EnsureDocument(IDesignerSerializationManager manager)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
at System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost host)

非常感谢任何帮助，这真的很烦人。

谢谢

乔尔。

Answer 1

我偶尔也会遇到这个 Visual Studio 错误，并且我深深地忽略了错误文本，而是执行以下操作:

1. 关闭“设计”选项卡
2. 通过双击“解决方案资源管理器”或右键单击“源代码”选项卡并选择“ View 设计器”来重新打开设计模式
3. 突然间一切又恢复正常了!

如果没有帮助，您可能需要将第 2 条更改为:关闭并重新启动 Visual Studio。

也许这可以帮助你。