我的应用程序偶尔抛出异常:
异常类型:InvalidOperationException异常消息: 收集被修改;枚举操作可能无法执行。
以及这里的stacktrace
Exception type: InvalidOperationException
Exception message: Collection was modified; enumeration operation may not execute.
at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
at System.Reflection.RuntimeAssembly.InternalGetSatelliteAssembly(String name, CultureInfo culture, Version version, Boolean throwOnFileNotFound, StackCrawlMark& stackMark)
at System.Resources.ManifestBasedResourceGroveler.GetSatelliteAssembly(CultureInfo lookForCulture, StackCrawlMark& stackMark)
at System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
at System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
at System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
这是我的代码:
public IList<Function> MapWithLanguage(IList<Function> list)
{
if (list == null)
{
return null;
}
var currentResource = Type.GetType("Fanex.Athena.Models.ViewModel.Menu, Fanex.Athena.Models");
ResourceManager rm = new ResourceManager(currentResource);
var newList = new List<Function>();
foreach (var func in list)
{
newList.Add(new Function
{
Name = rm.GetString("Menu_" + func.FunctionId),
});
}
return newList;
}
任何人都可以提供帮助吗?它太奇怪了!
答案 0 :(得分:4)
经过长时间的检查,我找到了根本原因。 这是我的代码导致上述问题:
AppDomain.CurrentDomain.GetAssemblies().
因为此方法尝试加载生成的程序集,例如&#34; web_adg_gfgt_dfd.dll&#34;当IIS回收时,它们可以被删除。为了解决这个问题,我们只需要避免加载&#34;生成的程序集&#34;。
因此我们有两种方法可以解决:
1.Filter&#34;生成组件&#34;:
AppDomain.CurrentDomain.GetAssemblies().Where(i => i.IsDynamic == false).ToList()
2.使用此方法:
BuildManager.GetReferencedAssemblies().Cast<Assembly>().ToList()
答案 1 :(得分:-1)
实际上是InvalidOperationException异常消息:集合已被修改;枚举操作可能不执行意味着:
我们正在使用foreach循环遍历集合中的元素。
我认为这可以解决你的问题。
foreach (var func in list.ToList())
{
//Do your stuff
}