我正在使用 .NET XSD.EXE 导入器生成来自 XSD 文件集合的 C# 类.当我尝试将其中一个类序列化为 XML 时，它失败了(InvalidOperationException)，当我深入研究它时，我发现其中一个创建的类似乎是错误的.
I am using the .NET XSD.EXE importer to generate C# classes from a collection of XSD files. When I tried to serialize one of the classes to XML it failed (InvalidOperationException), and when I dug into it I discovered it one of the created classes appears to be wrong.
这里是相关的 XSD 代码:
Here is the pertinent XSD code:
<xsd:complexType name="SuccessType">
<xsd:annotation>
<xsd:documentation>Indicates in a response message that a request was successfully processed.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element ref="Warnings" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<!-- .. snip .. -->
<xsd:element name="Warnings" type="WarningsType">
<xsd:annotation>
<xsd:documentation>The processing status of a business message and any related warnings or informational messages.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<!-- .. snip .. -->
<xsd:complexType name="WarningsType">
<xsd:annotation>
<xsd:documentation>A collection of warnings generated by the successful processing of a business message.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element ref="Warning" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<!-- .. snip .. -->
<xsd:element name="Warning" type="WarningType">
<xsd:annotation>
<xsd:documentation>Defines details of a warning that occurred during message processing.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<!-- .. snip .. -->
<xsd:complexType name="WarningType">
<xsd:annotation>
<xsd:documentation>Defines details of a warning that occurred during message processing.</xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element ref="WarningCategory"/>
<xsd:element ref="WarningCode"/>
<xsd:element ref="WarningShortMessage"/>
<xsd:element ref="WarningMessage"/>
</xsd:sequence>
</xsd:complexType>
下面是从中生成的 C# 代码:
And here is the C# code generated from it:
public partial class SuccessType
{
private WarningType[][] warningsField;
/// <remarks/>
[System.Xml.Serialization.XmlArrayItemAttribute("Warning", typeof(WarningType), IsNullable = false)]
public WarningType[][] Warnings
{
get
{
return this.warningsField;
}
set
{
this.warningsField = value;
}
}
}
它使 Warnings 成为 WarningType 数组的数组.当我尝试将其序列化为 XML 时，我得到一个 InvalidOperationException 异常:
It made Warnings an array of an array of WarningType. When I attempt to serialize that to XML I get an InvalidOperationException exception:
但是如果我将生成的代码从 WarningType[][] 更改为 WarningType[] 那么它可以很好地序列化.
But if I change the generated code from WarningType[][] to WarningType[] then it serializes fine.
每当我重新生成它时都没有编辑生成的 C# 类(希望以后不会那么频繁)，还有其他解决方案吗?这是 xsd.exe 中的错误还是 XSD 文件不正确?可能是 XmlSerializer 有问题?
Short of editing the generated C# class whenever I regenerate this (which hopefully will be less frequently going forward), is there any other solution? Is this a bug in xsd.exe or is the XSD file incorrect? Maybe there is a problem in the XmlSerializer?
我想要的是正确序列化为针对 XSD 进行验证的 XML 的 C# 代码.现在锯齿状数组似乎是错误的，因为如果我删除它，它就会生成 XML.
What I want is C# code that correctly serializes to XML that validates against the XSD. Right now the jagged array seems to be wrong because if I remove it then it generates the XML.
我正在使用 Visual Studio 2008.
I am using Visual Studio 2008.
xsd.exe工具有bug.我不记得这个特别的，但我记得发现了锯齿状数组的问题，这可能仍然是一个错误.如果您愿意，可以使用 XsdObjbectGen 工具，同样来自 Microsoft，但独立于 .NET SDK 带外发布.
There are bugs in the xsd.exe tool. I don't remember this particular one, but I do remember finding problems with jagged arrays, and it's possible this remains a bug. if you're willing, you could use the XsdObjbectGen tool, also from Microsoft, but released independently and out-of-band from the .NET SDK.
您可以做的一件事是反其道而行之:编写 C# 代码，然后使用 xsd.exe 生成架构，看看有什么不同.xsd.exe 可能希望架构具有特定的外观，以便为锯齿状数组正确生成正确的代码.
One thing you could do is go the reverse direction: write the C# code, then generate the schema with xsd.exe, and see what is different. It's possible xsd.exe wants the schema to look a particular way, in order to correctly generate correct code for jagged arrays.
实际上，在重新阅读您的问题后，您从未说出您真正想要的内容.您是否希望 SuccessType 包含数组数组?
Actually, upon re-reading your question, you never said what you really wanted. Do you want SuccessType to contain an array-of-arrays, or not?
它是 WarningsType 还是 WarningType?您提供的代码片段之间存在一些分歧.
And is it WarningsType or WarningType? There's some disagreement between the code snips you provided.
假设您想要数组数组，我编写了以下 C# 代码:
Assuming you wanted the array-of-arrays, I wrote this C# code:
public class WarningType
{
public String oof;
}
public partial class SuccessType
{
private WarningType[][] warningsField;
/// <remarks/>
[System.Xml.Serialization.XmlArrayItemAttribute("Warning", typeof(WarningType[]), IsNullable = false)]
public WarningType[][] Warnings
{
get
{
return this.warningsField;
}
set
{
this.warningsField = value;
}
}
}
... 然后将其编译为 DLL.然后我在那个 DLL 上运行 xsd.exe，并生成了这个 XSD:
... then compiled it into a DLL. Then I ran xsd.exe on that DLL, and generated this XSD:
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="WarningType" nillable="true" type="WarningType" />
<xs:complexType name="WarningType">
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="1" name="oof" type="xs:string" />
</xs:sequence>
</xs:complexType>
<xs:element name="SuccessType" nillable="true" type="SuccessType" />
<xs:complexType name="SuccessType">
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="1" name="Warnings" type="ArrayOfArrayOfWarningType" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="ArrayOfArrayOfWarningType">
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="unbounded" name="Warning" type="ArrayOfWarningType" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="ArrayOfWarningType">
<xs:sequence>
<xs:element minOccurs="0" maxOccurs="unbounded" name="WarningType" nillable="true" type="WarningType" />
</xs:sequence>
</xs:complexType>
</xs:schema>
...它往返.如果我然后在该架构上运行 xsd.exe，我会得到一个包含数组数组的类型.
...and it round-trips. If I then run xsd.exe on that schema, I get a type that wraps an array-of-arrays.
这篇关于.NET xsd 导入器创建不可序列化的类的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！