为什么通过反射查询程序集的类型会导致程序在调试时意外挂起？

Question

使用此代码停止响应我的程序。

Assembly assembly = Assembly.LoadFrom(@"C:\test\test.exe");
Type[] typesInAssembly = assembly.GetTypes();

在调试模式下，此代码在第二行执行时停止响应。

我将test.exe 更改为空的WindowsformApplication.exe，它可以工作。 我不知道为什么它不适用于test.exe。 我在调试 Locals 部分放置了断点并检查了 Locals，我看到了一些错误图标，我将它们粘贴在下面。我希望有人能帮助我解决这个问题。

    DefinedTypes    Function evaluation timed out.  System.Collections.Generic.IEnumerable<System.Reflection.TypeInfo>
    EntryPoint  Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Reflection.MethodInfo
    EscapedCodeBase Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. string
    Evidence    Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Security.Policy.Evidence
    ExportedTypes   Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Collections.Generic.IEnumerable<System.Type>
    FullName    Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. string
    GlobalAssemblyCache Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. bool
    HostContext Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. long
    ImageRuntimeVersion Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. string
    IsDynamic   Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. bool
    IsFullyTrusted  Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. bool
    Location    Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. string
    ManifestModule  Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Reflection.Module
    Modules Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Collections.Generic.IEnumerable<System.Reflection.Module>
    PermissionSet   Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Security.PermissionSet
    ReflectionOnly  Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. bool
    SecurityRuleSet Function evaluation disabled because a previous function evaluation timed out. You must continue execution to reenable function evaluation. System.Security.SecurityRuleSet

Answer 1

这也曾经困扰过我一次。我遇到的问题（可能与您的问题相同）是我正在检查的可执行文件在另一个环境中的调试器下运行。这导致文件被锁定。我可以将文件加载到仅反射上下文中，但是当我尝试查询类型时，它会挂起。

所以，请确保：

• 您没有打开正在加载的可执行文件的进程
• 您没有在其他地方加载可执行文件，可能被调试器暂停
• 您使用反射的程序有足够的权限访问该文件

验证这些内容后，请尝试重新启动计算机并重试。如果有效，那就是资源获取问题。如果没有，请上传您的可执行文件，如果可以，我可以尝试重现该问题。