VB.Net Xml Desearialization到一个类

Question

我有一个问题试图将一些XML反序列化成我创建的类。

我得到的错误是：

There is an error in XML document (1, 2). 

    at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events) 
    at System.Xml.Serialization.XmlSerializer.Deserialize(TextReader textReader) 
    at CommonLayer.InvuManager.FindDocuments(String policy, String year) in C:\GIT\novus\CommonLayer\InvuManager.vb:line 194 
    at Novus.NavigationControlRisk.UpdateInvuDocumentsFolderTitle(TreeListNode& documentsFolderNode, String policy, String year) in C:\GIT\novus\Dashboard\src\Dashboard\NavigationControls\NavigationControlRisk.vb:line 3125 
    at Novus.NavigationControlRisk.PopulateFolders(TreeListNode parentNode, Boolean isAttachingPolicy, Boolean refreshData) in C:\GIT\novus\Dashboard\src\Dashboard\NavigationControls\NavigationControlRisk.vb:line 1280 
    at Novus.NavigationControlRisk.PopulateNode(Boolean refreshData) in C:\GIT\novus\Dashboard\src\Dashboard\NavigationControls\NavigationControlRisk.vb:line 1158 
    at Novus.NavigationControlRisk.mainTreeList_MouseClick(Object sender, MouseEventArgs e, Boolean refreshData) in C:\GIT\novus\Dashboard\src\Dashboard\NavigationControls\NavigationControlRisk.vb:line 2340 
    at Novus.NavigationControlRisk._Lambda$__R25-1(Object a0, MouseEventArgs a1) 
    at System.Windows.Forms.Control.OnMouseClick(MouseEventArgs e) 
    at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) 
    at System.Windows.Forms.Control.WndProc(Message& m) 
    at DevExpress.XtraEditors.Container.EditorContainer.WndProc(Message& m) 
    at DevExpress.XtraTreeList.TreeList.WndProc(Message& m) 
    at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 
    at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) 
    at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) 
    at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) 
    at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) 
    at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun() 
    at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel() 
    at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine) 
    at Novus.My.MyApplication.Main(String[] Args) in :line 81 
    at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) 
    at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) 
    at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() 
    at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
    at System.Threading.ThreadHelper.ThreadStart() 

这里是我创建的类，它没有什么特别的，在这一点上，我只是试图得到它的工作：

Imports System.Xml.Serialization 

<Serializable, XmlRoot("Document")> _ 
Public Class Document 
    <XmlElement("Type")> _ 
    Public Property Type As String 
    <XmlElement("FileName")> _ 
    Public Property FileName As String 
End Class 

而且这里是我使用的文件的XML：

<ArrayOfDocuments> 
    <Document> 
    <Type>Debit/Credit note</Type> 
    <FileName>dbE12901_acc1.doc</FileName> 
    </Document> 
    <Document> 
    <Type>Generic</Type> 
    <FileName>a3_lmbc_categories.xls</FileName> 
    </Document> 
</ArrayOfDocuments> 

最后，这里是我使用的代码：

Dim foundDocuments As New List(Of Document) 
Dim xmldoc As New XmlDocument 
xmldoc.Load(InterfaceFilePath) 
Dim allText As String = xmldoc.InnerXml 

Using currentStringReader As New StringReader(allText) 
    Dim xml as New XmlSerializer(GetType(List(Of Document))) 
    foundDocuments = TryCast(xml.Deserialize(currentStringReader), List(Of Document)) 
End Using 

我不能，为了我的生活，找出为什么它不会反序列化。我的应用程序中有不同类的其他实例，我已经检查过，它们的结构方式是相同的，所以我不明白为什么它不起作用。

我需要另一双眼睛来检查我做了什么，有没有人有任何建议？

Answer 1

喊出克里斯·达纳韦在谁上述评论的一个解决了这个问题对我来说。

正在改变ArrayOfDocuments的简单情况=> ArrayOfDocument

之后，它完美地工作

Answer 2

正如在评论中提到由克里斯，用于List(Of Document)根元素名称需要ArrayOfDocument（单数），所以如果XML包含ArrayOfDocuments（复数）的根元素，它不会自动运行。

如果您需要反序列化，因为，一个简单的解决方案是创建一个ArrayOfDocuments类和反序列化到，与其反序列化到List(Of Document)：

Public Class Document 
    Public Property Type As String 
    Public Property FileName As String 
End Class 

Public Class ArrayOfDocuments 
    <XmlElement> 
    Public Property Document As Document() 
End Class 

然后：

Dim xml As New XmlSerializer(GetType(ArrayOfDocuments)) 
foundDocuments = TryCast(xml.Deserialize(currentStringReader), ArrayOfDocuments) 

Answer 3

您可以通过复制xml文本然后在Visual Studio中自动从xml生成类：

编辑>>选择性粘贴>>粘贴XML作为类

我做到这一点，它产生的类

<System.Xml.Serialization.XmlTypeAttribute(AnonymousType:=True), _ 
System.Xml.Serialization.XmlRootAttribute([Namespace]:="", IsNullable:=False)> _ 
Partial Public Class ArrayOfDocuments 
    Private documentField() As ArrayOfDocumentsDocument 
    <System.Xml.Serialization.XmlElementAttribute("Document")> _ 
    Public Property Document() As ArrayOfDocumentsDocument() 
     Get 
      Return Me.documentField 
     End Get 
     Set(value As ArrayOfDocumentsDocument()) 
      Me.documentField = value 
     End Set 
    End Property 
End Class 

<System.Xml.Serialization.XmlTypeAttribute(AnonymousType:=True)> _ 
Partial Public Class ArrayOfDocumentsDocument 
    Private typeField As String 
    Private fileNameField As String 
    Public Property Type() As String 
     Get 
      Return Me.typeField 
     End Get 
     Set(value As String) 
      Me.typeField = value 
     End Set 
    End Property 
    Public Property FileName() As String 
     Get 
      Return Me.fileNameField 
     End Get 
     Set(value As String) 
      Me.fileNameField = value 
     End Set 
    End Property 
End Class 

（自动变更名称ArrayOfDocumentDocument手动Document）

这是反序列化很容易

Imports System.Xml.Serialization 
Imports System.IO 

---

Dim s As New XmlSerializer(GetType(ArrayOfDocuments)) 
Dim m As ArrayOfDocuments 
Using sr As New StreamReader("XMLFile1.xml") 
    m = s.Deserialize(sr) 
End Using 
Dim foundDocuments = m.Document.ToList()