Xsd2Code帮助 - 生成的代码似乎与模式不匹配

时间:2011-10-20 15:11:14

标签: xsd code-generation xsd2code

我可能做错了,但我创建了一个简单的测试模式:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:element name="MyRoot">
    <xs:annotation>
        <xs:documentation>Comment describing your root element</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:choice>
            <xs:element name="MyChildOne" minOccurs="0" maxOccurs="unbounded">
                <xs:complexType>
                    <xs:choice>
                        <xs:element name="SubChild" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:choice>
                    <xs:attribute name="SomeAttribute" type="xs:string"/>
                    <xs:attribute name="SomethingElse" type="xs:string"/>
                </xs:complexType>
            </xs:element>
            <xs:element name="MyChildTwo" type="xs:string" maxOccurs="unbounded"/>
        </xs:choice>
    </xs:complexType>
</xs:element>

一个根,两个孩子(一个可选)。

我从VS2010运行了Xsd2Code,生成的代码创建了两个“根”类(MyRoot和MyChildOne)而没有创建预期的MyChildTwo。我原本期望MyRoot.MyChildOne的模型......

这是生成的代码:

using System;
using System.Diagnostics;
using System.Xml.Serialization;
using System.Collections;
using System.Xml.Schema;
using System.ComponentModel;
using System.Collections.Generic;


public partial class MyRoot
{

    private List<object> itemsField;

    public MyRoot()
    {
        this.itemsField = new List<object>();
    }

    public List<object> Items
    {
        get
        {
            return this.itemsField;
        }
        set
        {
            this.itemsField = value;
        }
    }
}

public partial class MyRootMyChildOne
{

    private List<object> itemsField;

    private string someAttributeField;

    private string somethingElseField;

    public MyRootMyChildOne()
    {
        this.itemsField = new List<object>();
    }

    public List<object> Items
    {
        get
        {
            return this.itemsField;
        }
        set
        {
            this.itemsField = value;
        }
    }

    public string SomeAttribute
    {
        get
        {
            return this.someAttributeField;
        }
        set
        {
            this.someAttributeField = value;
        }
    }

    public string SomethingElse
    {
        get
        {
            return this.somethingElseField;
        }
        set
        {
            this.somethingElseField = value;
        }
    }
}

我不明白如何将其序列化为有效的(架构兼容的)XML文件...

感谢您对此进行教育

的Cos

1 个答案:

答案 0 :(得分:1)

如果您使用xsd.exe生成此类,它会为您提供相同的内容:

public partial class MyRoot {

    private object[] itemsField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("MyChildOne", typeof(MyRootMyChildOne))]
    [System.Xml.Serialization.XmlElementAttribute("MyChildTwo", typeof(string))]
    public object[] Items {
        get {
            return this.itemsField;
        }
        set {
            this.itemsField = value;
        }
    }
}

除了使用已知类型声明外:

[System.Xml.Serialization.XmlElementAttribute("MyChildTwo", typeof(string))]

因此,如果你考虑它就有意义了。因为您的子类型2是字符串而字符串是XSD中的简单类型,所以您可以将System.String的实例添加到Items数组中,然后使用上面的代码将其序列化。每个字符串都将包装在<MyChildTwo/>节点中。

<强>更新

要使这项工作你创建你的类型,然后使用XmlSerializer:

var root = new MyRoot();
root.Items = new object[2];
root.Items[0] = new MyRootMyChildOne { Items = new object[1], SomeAttribute = "test", SomethingElse = "test" };
root.Items[1] = "hello";

var ser = new XmlSerializer(typeof(MyRoot));
var memoryStream = new MemoryStream();
var xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
var streamReader = new StreamReader(memoryStream, Encoding.UTF8);
ser.Serialize(xmlTextWriter, root);
memoryStream.Position = 0;

string xml = streamReader.ReadToEnd();

这为我们提供了以下XML:

<MyRoot xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <MyChildOne SomeAttribute="test" SomethingElse="test" />
    <MyChildTwo>hello</MyChildTwo>
</MyRoot>