&引用；System.Workflow.Runtime.Hosting.PersistenceException“；自定义SharePoint顺序工作流

对于具有自定义活动的sharepoint Visual Studio顺序工作流，sharepoint日志中出现以下错误

自定义活动是通过组件类创建的

我不知道为什么会出现这个错误？请帮忙

System.Workflow.Runtime.Hosting.PersistenceException: Type 'System.ComponentModel.Container' in Assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable. ---> System.Runtime.Serialization.SerializationException: Type 'System.ComponentModel.Container' in Assembly 'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.     at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)     at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)     at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()     at System.Runtime.Serialization.Formatters.Binary.WriteObjectInf... 3d93366f-a701-476c-91c9-d2153911486b
03/22/2012 12:38:36.31* w3wp.exe (0x049C)                           0x1620  SharePoint Foundation           Workflow Infrastructure         98d4    Unexpected  ...o.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)     at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)     at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)     at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)     at System.Workflow.ComponentModel.Activity.Save(Stream stream, IFormatter formatter)     at System.Workflow.Runtime.Hosting.WorkflowPersistenceService.GetDefaultSerializedForm(Ac...  3d93366f-a701-476c-91c9-d2153911486b
03/22/2012 12:38:36.31* w3wp.exe (0x049C)                           0x1620  SharePoint Foundation           Workflow Infrastructure         98d4    Unexpected  ...tivity activity)     at Microsoft.SharePoint.Workflow.SPWinOePersistenceService.SaveWorkflowInstanceState(Activity instanceState, Boolean unlock)     at System.Workflow.Runtime.WorkflowExecutor.Persist(Activity dynamicActivity, Boolean unlock, Boolean needsCompensation)     --- End of inner exception stack trace ---     at System.Workflow.Runtime.WorkflowExecutor.Persist(Activity dynamicActivity, Boolean unlock, Boolean needsCompensation)     at System.Workflow.Runtime.WorkflowExecutor.ProtectedPersist(Boolean unlock)  3d93366f-a701-476c-91c9-d2153911486b

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谢谢

您可以访问工作流的源XAML吗？查看是否包含“容器”对象，以及是否有必要将其放在那里。如果您可以删除它，并且工作流仍然正常运行，这可能会解决问题。

问题是因为当我将组件类更改为顺序活动时，我有活动属性，例如“A”和“B”。然后我将此活动添加到VS工具箱中。在这个阶段，它工作得很好

现在，当我更改活动代码以将其属性更改为“A”和“C”时，我还删除了一个参数为“Container”对象的构造函数

当我重新编译此活动并刷新其DLL时。在工作流设计器中，活动未得到刷新，即其工具箱仍指向旧dll

要解决此问题，我关闭并再次打开VS，瞧，设计师现在正在使用新属性更新活动

我认为这是VS工具箱的局限性，即尽管活动的dll已更新，但它仍无法刷新

谢谢