Object of type 'System.Collections.Generic.List`1[Jud.Itd.Cmis.BusinessObjects.AddressType]' cannot be converted to type 'System.Collections.Generic.IList`1[Jud.Itd.Cmis.BusinessObjects.AddressType]'.
关闭Visual Studio并重新打开并重新编译所有修复它，所以我会说这显然是一个错误和巨大的麻烦。
问题是，除了重启VS还是没有设计师之外，还有其他工作吗？清理应用程序并重新编译所有操作都不会。
Instances of this error (1)
1. Hide Call Stack
at System.RuntimeType.CheckValue(Object value, Binder binder, CultureInfo culture, BindingFlags invokeAttr)
at System.Reflection.RtFieldInfo.InternalSetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture, Boolean doVisibilityCheck, Boolean doCheckConsistency)
at System.Reflection.RtFieldInfo.InternalSetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture, Boolean doVisibilityCheck)
at System.Runtime.Serialization.SerializationFieldInfo.InternalSetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, CultureInfo culture, Boolean requiresAccessCheck, Boolean isBinderDefault)
at System.Runtime.Serialization.FormatterServices.SerializationSetValue(MemberInfo fi, Object target, Object value)
at System.Runtime.Serialization.ObjectManager.CompleteObject(ObjectHolder holder, Boolean bObjectFullyComplete)
at System.Runtime.Serialization.ObjectManager.DoNewlyRegisteredObjectFixups(ObjectHolder holder)
at System.Runtime.Serialization.ObjectManager.RegisterObject(Object obj, Int64 objectID, SerializationInfo info, Int64 idOfContainingObj, MemberInfo member, Int32[] arrayIndex)
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.RegisterObject(Object obj, ParseRecord pr, ParseRecord objectPr, Boolean bIsString)
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ParseObjectEnd(ParseRecord pr)
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Parse(ParseRecord pr)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream)
at System.Resources.ResXDataNode.GenerateObjectFromDataNodeInfo(DataNodeInfo dataNodeInfo, ITypeResolutionService typeResolver)
at System.Resources.ResXDataNode.GetValue(ITypeResolutionService typeResolver)
at System.Resources.ResXResourceReader.ParseDataNode(XmlTextReader reader, Boolean isMetaData)
at System.Resources.ResXResourceReader.ParseXml(XmlTextReader reader)
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答案 0 :(得分：0)
我可能有一个答案。我刚刚遇到同样的错误，我发现如果Form构造函数或Form_Load()方法中存在一些错误，则会生成此错误。我试图在这些方法中注释掉代码，当它没有帮助时，我意识到某些组件中必定存在错误。
就是这样。如果使用某个自定义组件，并且即使在调用此组件的构造函数后，它也将某些属性设置为null，则可能导致此呈现错误。
您可以在Form.resx文件中找到这些属性。它们的Value列设置为(Nothing/null)。
帮助我的是删除这些坏行并使用以下属性标记我的属性。
[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
答案 1 :(得分：-1)
WinForm Designer有一个错误。事实上，这个错误率是WinForm开发中最容易引起bug的问题。和它一起生活。