我正在尝试在xml文件中保存C＃中对象的列表数组。我成功地保存了一个对象数组和一个对象列表，但没有保存一个对象列表数组。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace expirement
{
public class Box
{
public int x;
public Box(int a)
{
x = a;
}
public Box()
{
}
}
public class Program
{
static void Main(string[] args)
{
List<Box>[] MainArr = new List<Box>[1];
MainArr[0] = new List<Box>();
Box Box1 = new Box(1);
MainArr[0].Add(Box1);
System.Xml.Serialization.XmlSerializer writer = new System.Xml.Serialization.XmlSerializer(MainArr.GetType());
System.IO.StreamWriter fileWrite = new System.IO.StreamWriter(@"C:\Users\student\Desktop\ArrListBox.xml");
writer.Serialize(fileWrite,MainArr);
fileWrite.Close();
}
}
}
我收到错误：
Unable to generate a temporary class (result=1).
error CS1026: ) expected
error CS1002: ; expected
error CS1525: Invalid expression term ')'
error CS1002: ; expected
error CS1525: Invalid expression term ')'
答案 0 :(得分：1)
我重现了您的错误消息，发现它确实是Microsoft的XML序列化程序中的一个错误。
使用XmlSerializer(type)构造函数时，.NET会自动生成一个名为AssemblyName.XmlSerializer.dll的程序集。该程序集包含执行代码序列化和反序列化的实际类。
在空的控制台应用程序中运行时，我首先得到一个NullReferenceException，就像其他几个评论一样。当我尝试使用sgen自行生成程序集时，在使用从List<List<Box>>派生的类时，我确实得到了合理的代码（你只能预编译类，所以你不能预先编译 - 编译List<Box>[]）的序列化程序。
使用此类时，我终于得到了您的错误消息，这可能是您项目中的测试类之一：
public class X
{
public List<Box>[] Boxes { get; set; }
}
使用sgen：
"C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1A\bin\NETFX 4.5.1 Tools\sgen" /t:"expirement.X" /a:ConsoleApplication8.exe /force
这给了我与你相同的错误。不幸的是，没有快速解决方案。使用其他类型似乎可以解决问题。在Microsoft Connect上报告此问题。
作为参考，这是序列化的完整代码（使用/k中的开关sgen）。代码看起来很破碎，我无法快速修复它：
#if _DYNAMIC_XMLSERIALIZER_COMPILATION
[assembly:System.Security.AllowPartiallyTrustedCallers()]
[assembly:System.Security.SecurityTransparent()]
[assembly:System.Security.SecurityRules(System.Security.SecurityRuleSet.Level1)]
#endif
[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
[assembly: System.Xml.Serialization.XmlSerializerVersionAttribute(ParentAssemblyId = @"c80da358-347f-48cf-88a7-0fda1a15c25b,", Version = @"4.0.0.0")]
namespace Microsoft.Xml.Serialization.GeneratedAssembly
{
public class XmlSerializationWriterX : System.Xml.Serialization.XmlSerializationWriter
{
public void Write4_X(object o)
{
WriteStartDocument();
if (o == null)
{
WriteNullTagLiteral(@"X", @"");
return;
}
TopLevelElement();
Write3_X(@"X", @"", ((global::expirement.X)o), true, false);
}
void Write3_X(string n, string ns, global::expirement.X o, bool isNullable, bool needType)
{
if ((object)o == null)
{
if (isNullable) WriteNullTagLiteral(n, ns);
return;
}
if (!needType)
{
System.Type t = o.GetType();
if (t == typeof(global::expirement.X))
{
}
else
{
throw CreateUnknownTypeException(o);
}
}
WriteStartElement(n, ns, o, false, null);
if (needType) WriteXsiType(@"X", @"");
{
global::System.Collections.Generic.List<global::expirement.Box>[] a = (global::System.Collections.Generic.List<global::expirement.Box>[])((global::System.Collections.Generic.List<global::expirement.Box>[])o.@Boxes);
if (a != null)
{
WriteStartElement(@"Boxes", @"", null, false);
for (int ia = 0; ia < a.Length; ia++)
{
{
global::System.Collections.Generic.List<global::expirement.Box> aa = (global::System.Collections.Generic.List<global::expirement.Box>)((global::System.Collections.Generic.List<global::expirement.Box>)a[ia]);
if ((object)(aa) == null)
{
WriteNullTagLiteral(@"ArrayOfBox", @"");
}
else
{
WriteStartElement(@"ArrayOfBox", @"", null, false);
for (int iaa = 0; iaa < ((System.Collections.ICollection)aa).Count; iaa++)
{
Write2_Box(@"Box", @"", ((global::expirement.Box)aa[iaa]), true, false);
}
WriteEndElement();
}
}
}
WriteEndElement();
}
}
WriteEndElement(o);
}
void Write2_Box(string n, string ns, global::expirement.Box o, bool isNullable, bool needType)
{
if ((object)o == null)
{
if (isNullable) WriteNullTagLiteral(n, ns);
return;
}
if (!needType)
{
System.Type t = o.GetType();
if (t == typeof(global::expirement.Box))
{
}
else
{
throw CreateUnknownTypeException(o);
}
}
WriteStartElement(n, ns, o, false, null);
if (needType) WriteXsiType(@"Box", @"");
WriteElementStringRaw(@"x", @"", System.Xml.XmlConvert.ToString((global::System.Int32)((global::System.Int32)o.@x)));
WriteEndElement(o);
}
protected override void InitCallbacks()
{
}
}
public class XmlSerializationReaderX : System.Xml.Serialization.XmlSerializationReader
{
public object Read4_X()
{
object o = null;
Reader.MoveToContent();
if (Reader.NodeType == System.Xml.XmlNodeType.Element)
{
if (((object)Reader.LocalName == (object)id1_X && (object)Reader.NamespaceURI == (object)id2_Item))
{
o = Read3_X(true, true);
}
else
{
throw CreateUnknownNodeException();
}
}
else
{
UnknownNode(null, @":X");
}
return (object)o;
}
global::expirement.X Read3_X(bool isNullable, bool checkType) {
System.Xml.XmlQualifiedName xsiType = checkType ? GetXsiType() : null;
bool isNull = false;
if (isNullable) isNull = ReadNull();
if (checkType) {
if (xsiType == null || ((object) ((System.Xml.XmlQualifiedName)xsiType).Name == (object)id1_X && (object) ((System.Xml.XmlQualifiedName)xsiType).Namespace == (object)id2_Item)) {
}
else
throw CreateUnknownTypeException((System.Xml.XmlQualifiedName)xsiType);
}
if (isNull) return null;
global::expirement.X o;
o = new global::expirement.X();
global::System.Collections.Generic.List<global::expirement.Box>[] a_0 = null;
int ca_0 = 0;
bool[] paramsRead = new bool[1];
while (Reader.MoveToNextAttribute()) {
if (!IsXmlnsAttribute(Reader.Name)) {
UnknownNode((object)o);
}
}
Reader.MoveToElement();
if (Reader.IsEmptyElement) {
Reader.Skip();
return o;
}
Reader.ReadStartElement();
Reader.MoveToContent();
int whileIterations0 = 0;
int readerCount0 = ReaderCount;
while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && Reader.NodeType != System.Xml.XmlNodeType.None) {
if (Reader.NodeType == System.Xml.XmlNodeType.Element) {
if (((object) Reader.LocalName == (object)id3_Boxes && (object) Reader.NamespaceURI == (object)id2_Item)) {
if (!ReadNull()) {
global::System.Collections.Generic.List<global::expirement.Box>[] a_0_0 = null;
int ca_0_0 = 0;
if ((Reader.IsEmptyElement)) {
Reader.Skip();
}
else {
Reader.ReadStartElement();
Reader.MoveToContent();
int whileIterations1 = 0;
int readerCount1 = ReaderCount;
while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && Reader.NodeType != System.Xml.XmlNodeType.None) {
if (Reader.NodeType == System.Xml.XmlNodeType.Element) {
if (((object) Reader.LocalName == (object)id4_ArrayOfBox && (object) Reader.NamespaceURI == (object)id2_Item)) {
if (!ReadNull()) {
if ((object)(a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++]) == null) a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++] = new global::System.Collections.Generic.List<global::expirement.Box>();
global::System.Collections.Generic.List<global::expirement.Box> a_0_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>)a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++];
if ((Reader.IsEmptyElement)) {
Reader.Skip();
}
else {
Reader.ReadStartElement();
Reader.MoveToContent();
int whileIterations2 = 0;
int readerCount2 = ReaderCount;
while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && Reader.NodeType != System.Xml.XmlNodeType.None) {
if (Reader.NodeType == System.Xml.XmlNodeType.Element) {
if (((object) Reader.LocalName == (object)id5_Box && (object) Reader.NamespaceURI == (object)id2_Item)) {
if ((object)(a_0_0_0) == null) Reader.Skip(); else a_0_0_0.Add(Read2_Box(true, true));
}
else {
UnknownNode(null, @":Box");
}
}
else {
UnknownNode(null, @":Box");
}
Reader.MoveToContent();
CheckReaderCount(ref whileIterations2, ref readerCount2);
}
ReadEndElement();
}
}
else {
if ((object)(a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++]) == null) a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++] = new global::System.Collections.Generic.List<global::expirement.Box>();
global::System.Collections.Generic.List<global::expirement.Box> a_0_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>)a_0_0 = (global::System.Collections.Generic.List<global::expirement.Box>[])EnsureArrayIndex(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>));a_0_0[ca_0_0++];
}
}
else {
UnknownNode(null, @":ArrayOfBox");
}
}
else {
UnknownNode(null, @":ArrayOfBox");
}
Reader.MoveToContent();
CheckReaderCount(ref whileIterations1, ref readerCount1);
}
ReadEndElement();
}
o.@Boxes = (global::System.Collections.Generic.List<global::expirement.Box>[])ShrinkArray(a_0_0, ca_0_0, typeof(global::System.Collections.Generic.List<global::expirement.Box>), false);
}
}
else {
UnknownNode((object)o, @":Boxes");
}
}
else {
UnknownNode((object)o, @":Boxes");
}
Reader.MoveToContent();
CheckReaderCount(ref whileIterations0, ref readerCount0);
}
ReadEndElement();
return o;
}
global::expirement.Box Read2_Box(bool isNullable, bool checkType)
{
System.Xml.XmlQualifiedName xsiType = checkType ? GetXsiType() : null;
bool isNull = false;
if (isNullable) isNull = ReadNull();
if (checkType)
{
if (xsiType == null || ((object)((System.Xml.XmlQualifiedName)xsiType).Name == (object)id5_Box && (object)((System.Xml.XmlQualifiedName)xsiType).Namespace == (object)id2_Item))
{
}
else
throw CreateUnknownTypeException((System.Xml.XmlQualifiedName)xsiType);
}
if (isNull) return null;
global::expirement.Box o;
o = new global::expirement.Box();
bool[] paramsRead = new bool[1];
while (Reader.MoveToNextAttribute())
{
if (!IsXmlnsAttribute(Reader.Name))
{
UnknownNode((object)o);
}
}
Reader.MoveToElement();
if (Reader.IsEmptyElement)
{
Reader.Skip();
return o;
}
Reader.ReadStartElement();
Reader.MoveToContent();
int whileIterations3 = 0;
int readerCount3 = ReaderCount;
while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && Reader.NodeType != System.Xml.XmlNodeType.None)
{
if (Reader.NodeType == System.Xml.XmlNodeType.Element)
{
if (!paramsRead[0] && ((object)Reader.LocalName == (object)id6_x && (object)Reader.NamespaceURI == (object)id2_Item))
{
{
o.@x = System.Xml.XmlConvert.ToInt32(Reader.ReadElementString());
}
paramsRead[0] = true;
}
else
{
UnknownNode((object)o, @":x");
}
}
else
{
UnknownNode((object)o, @":x");
}
Reader.MoveToContent();
CheckReaderCount(ref whileIterations3, ref readerCount3);
}
ReadEndElement();
return o;
}
protected override void InitCallbacks()
{
}
string id5_Box;
string id3_Boxes;
string id1_X;
string id2_Item;
string id6_x;
string id4_ArrayOfBox;
protected override void InitIDs()
{
id5_Box = Reader.NameTable.Add(@"Box");
id3_Boxes = Reader.NameTable.Add(@"Boxes");
id1_X = Reader.NameTable.Add(@"X");
id2_Item = Reader.NameTable.Add(@"");
id6_x = Reader.NameTable.Add(@"x");
id4_ArrayOfBox = Reader.NameTable.Add(@"ArrayOfBox");
}
}
public abstract class XmlSerializer1 : System.Xml.Serialization.XmlSerializer
{
protected override System.Xml.Serialization.XmlSerializationReader CreateReader()
{
return new XmlSerializationReaderX();
}
protected override System.Xml.Serialization.XmlSerializationWriter CreateWriter()
{
return new XmlSerializationWriterX();
}
}
public sealed class XSerializer : XmlSerializer1
{
public override System.Boolean CanDeserialize(System.Xml.XmlReader xmlReader)
{
return xmlReader.IsStartElement(@"X", @"");
}
protected override void Serialize(object objectToSerialize, System.Xml.Serialization.XmlSerializationWriter writer)
{
((XmlSerializationWriterX)writer).Write4_X(objectToSerialize);
}
protected override object Deserialize(System.Xml.Serialization.XmlSerializationReader reader)
{
return ((XmlSerializationReaderX)reader).Read4_X();
}
}
public class XmlSerializerContract : global::System.Xml.Serialization.XmlSerializerImplementation
{
public override global::System.Xml.Serialization.XmlSerializationReader Reader { get { return new XmlSerializationReaderX(); } }
public override global::System.Xml.Serialization.XmlSerializationWriter Writer { get { return new XmlSerializationWriterX(); } }
System.Collections.Hashtable readMethods = null;
public override System.Collections.Hashtable ReadMethods
{
get
{
if (readMethods == null)
{
System.Collections.Hashtable _tmp = new System.Collections.Hashtable();
_tmp[@"expirement.X::"] = @"Read4_X";
if (readMethods == null) readMethods = _tmp;
}
return readMethods;
}
}
System.Collections.Hashtable writeMethods = null;
public override System.Collections.Hashtable WriteMethods
{
get
{
if (writeMethods == null)
{
System.Collections.Hashtable _tmp = new System.Collections.Hashtable();
_tmp[@"expirement.X::"] = @"Write4_X";
if (writeMethods == null) writeMethods = _tmp;
}
return writeMethods;
}
}
System.Collections.Hashtable typedSerializers = null;
public override System.Collections.Hashtable TypedSerializers
{
get
{
if (typedSerializers == null)
{
System.Collections.Hashtable _tmp = new System.Collections.Hashtable();
_tmp.Add(@"expirement.X::", new XSerializer());
if (typedSerializers == null) typedSerializers = _tmp;
}
return typedSerializers;
}
}
public override System.Boolean CanSerialize(System.Type type)
{
if (type == typeof(global::expirement.X)) return true;
return false;
}
public override System.Xml.Serialization.XmlSerializer GetSerializer(System.Type type)
{
if (type == typeof(global::expirement.X)) return new XSerializer();
return null;
}
}
}
答案 1 :(得分：0)
尝试将列表序列化之前，尝试将列表转换为数组：
List<Box>[] MainArr = new List<Box>[1];
MainArr[0] = new List<Box>();
Box Box1 = new Box(1);
MainArr[0].Add(Box1);
var arr = Array.ConvertAll(MainArr, x => x.ToArray());
System.Xml.Serialization.XmlSerializer writer = new System.Xml.Serialization.XmlSerializer(arr.GetType());
System.IO.StreamWriter fileWrite = new System.IO.StreamWriter(@"C:\Users\Giorgos\Desktop\ConsoleApplication1\ArrListBox.xml");
writer.Serialize(fileWrite, arr);
fileWrite.Close();
上面的代码在我的机器上生成以下xml：
<?xml version="1.0" encoding="utf-8"?>
<ArrayOfArrayOfBox xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<ArrayOfBox>
<Box>
<x>1</x>
</Box>
</ArrayOfBox>
</ArrayOfArrayOfBox>
答案 2 :(得分：0)
注意，您应该为using使用StreamWriter块（请参阅下面代码中的我的评论）。
根据对您问题的评论，这看起来像是.NET中的一个错误。我可以看到几种解决方法：
选项1）使用List<List<Box>代替List<Box>[]
选项2）覆盖实现List<T>的{{1}}（或创建自己的IList<T>实现）。我在.NET 3.5和4.5中测试了下面的代码。
System.Xml.Serialization.IXmlSerializable